55506265516 has 48 divisors (see below), whose sum is σ = 109339776000. Its totient is φ = 24463213632.

The previous prime is 55506265511. The next prime is 55506265517. The reversal of 55506265516 is 61556260555.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (55506265511) 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, 677665 + ... + 755143.

It is an arithmetic number, because the mean of its divisors is an integer number (2277912000).

Almost surely, 2^55506265516 is an apocalyptic number.

It is an amenable number.

55506265516 is a deficient number, since it is larger than the sum of its proper divisors (53833510484).

55506265516 is a wasteful number, since it uses less digits than its factorization.

55506265516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78118 (or 78116 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 55506265516 in words is "fifty-five billion, five hundred six million, two hundred sixty-five thousand, five hundred sixteen".