Search a number
-
+
55255051 = 3115711353
BaseRepresentation
bin1101001011001…
…0000000001011
310211222020200101
43102302000023
5103121130201
65252150231
71240442305
oct322620013
9124866611
1055255051
112920aa35
1216608377
13b5a82c7
1474a4975
154cb6d01
hex34b200b

55255051 has 8 divisors (see below), whose sum is σ = 57405824. Its totient is φ = 53127360.

The previous prime is 55255019. The next prime is 55255061. The reversal of 55255051 is 15055255.

It is a happy number.

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 55255051 - 25 = 55255019 is a prime.

It is a super-2 number, since 2×552550512 = 6106241322025202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55255001) 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, 810 + ... + 10543.

It is an arithmetic number, because the mean of its divisors is an integer number (7175728).

Almost surely, 255255051 is an apocalyptic number.

55255051 is a deficient number, since it is larger than the sum of its proper divisors (2150773).

55255051 is a wasteful number, since it uses less digits than its factorization.

55255051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11541.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55255051 is about 7433.3741329224. The cubic root of 55255051 is about 380.8821863005.

The spelling of 55255051 in words is "fifty-five million, two hundred fifty-five thousand, fifty-one".

Divisors: 1 31 157 4867 11353 351943 1782421 55255051