55520572576 has 24 divisors (see below), whose sum is σ = 124921288800. Its totient is φ = 23794531008.

The previous prime is 55520572567. The next prime is 55520572577. The reversal of 55520572576 is 67527502555.

It is not an unprimeable number, because it can be changed into a prime (55520572577) 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, 123929626 + ... + 123930073.

It is an arithmetic number, because the mean of its divisors is an integer number (5205053700).

Almost surely, 2^55520572576 is an apocalyptic number.

55520572576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55520572576 is an abundant number, since it is smaller than the sum of its proper divisors (69400716224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55520572576 is a wasteful number, since it uses less digits than its factorization.

55520572576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247859716 (or 247859708 counting only the distinct ones).

The product of its (nonzero) digits is 3675000, while the sum is 49.

The spelling of 55520572576 in words is "fifty-five billion, five hundred twenty million, five hundred seventy-two thousand, five hundred seventy-six".