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55771741 = 531377681
BaseRepresentation
bin1101010011000…
…0001001011101
310212221111110001
43110300021131
5103234143431
65311214301
71245023554
oct324601135
9125844401
1055771741
1129533153
1216817391
13b72953c
14759ad9b
154d69e61
hex353025d

55771741 has 8 divisors (see below), whose sum is σ = 57246264. Its totient is φ = 54312960.

The previous prime is 55771739. The next prime is 55771753. The reversal of 55771741 is 14717755.

It can be written as a sum of positive squares in 4 ways, for example, as 20666116 + 35105625 = 4546^2 + 5925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55771741 - 21 = 55771739 is a prime.

It is a super-2 number, since 2×557717412 = 6220974188342162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55771741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55771241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3421 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (7155783).

Almost surely, 255771741 is an apocalyptic number.

It is an amenable number.

55771741 is a deficient number, since it is larger than the sum of its proper divisors (1474523).

55771741 is a wasteful number, since it uses less digits than its factorization.

55771741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871.

The product of its digits is 34300, while the sum is 37.

The square root of 55771741 is about 7468.0480046663. The cubic root of 55771741 is about 382.0657146889.

The spelling of 55771741 in words is "fifty-five million, seven hundred seventy-one thousand, seven hundred forty-one".

Divisors: 1 53 137 7261 7681 407093 1052297 55771741