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55506941 = 77929563
BaseRepresentation
bin1101001110111…
…1011111111101
310212110001012122
43103233133331
5103202210231
65301412325
71242541550
oct323573775
9125401178
1055506941
1129372206
121670a0a5
13b665b59
14752c697
154d1677b
hex34ef7fd

55506941 has 4 divisors (see below), whose sum is σ = 63436512. Its totient is φ = 47577372.

The previous prime is 55506931. The next prime is 55506947. The reversal of 55506941 is 14960555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55506941 - 210 = 55505917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55506947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3964775 + ... + 3964788.

It is an arithmetic number, because the mean of its divisors is an integer number (15859128).

Almost surely, 255506941 is an apocalyptic number.

It is an amenable number.

55506941 is a deficient number, since it is larger than the sum of its proper divisors (7929571).

55506941 is an equidigital number, since it uses as much as digits as its factorization.

55506941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929570.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 55506941 is about 7450.2980477294. The cubic root of 55506941 is about 381.4600821557.

The spelling of 55506941 in words is "fifty-five million, five hundred six thousand, nine hundred forty-one".

Divisors: 1 7 7929563 55506941