55552923951 has 16 divisors (see below), whose sum is σ = 85723622400. Its totient is φ = 31342697568.

The previous prime is 55552923947. The next prime is 55552923961. The reversal of 55552923951 is 15932925555.

It is not a de Polignac number, because 55552923951 - 2² = 55552923947 is a prime.

It is a super-2 number, since 2×55552923951² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55552923894 and 55552923903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552923961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16741236 + ... + 16744553.

It is an arithmetic number, because the mean of its divisors is an integer number (5357726400).

Almost surely, 2^55552923951 is an apocalyptic number.

55552923951 is a deficient number, since it is larger than the sum of its proper divisors (30170698449).

55552923951 is a wasteful number, since it uses less digits than its factorization.

55552923951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33485878.

The product of its digits is 3037500, while the sum is 51.

The spelling of 55552923951 in words is "fifty-five billion, five hundred fifty-two million, nine hundred twenty-three thousand, nine hundred fifty-one".