55013552165 has 64 divisors (see below), whose sum is σ = 80555876352. Its totient is φ = 35519212800.

The previous prime is 55013552159. The next prime is 55013552197. The reversal of 55013552165 is 56125531055.

It is a happy number.

It is not a de Polignac number, because 55013552165 - 2⁴ = 55013552149 is a prime.

It is a super-2 number, since 2×55013552165² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3605282 + ... + 3620508.

It is an arithmetic number, because the mean of its divisors is an integer number (1258685568).

Almost surely, 2^55013552165 is an apocalyptic number.

55013552165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55013552165 is a deficient number, since it is larger than the sum of its proper divisors (25542324187).

55013552165 is a wasteful number, since it uses less digits than its factorization.

55013552165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15450.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 55013552165 in words is "fifty-five billion, thirteen million, five hundred fifty-two thousand, one hundred sixty-five".