55880720250 has 32 divisors (see below), whose sum is σ = 139478279616. Its totient is φ = 14901525200.

The previous prime is 55880720243. The next prime is 55880720251. The reversal of 55880720250 is 5202708855.

It is not an unprimeable number, because it can be changed into a prime (55880720251) 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, 37253064 + ... + 37254563.

It is an arithmetic number, because the mean of its divisors is an integer number (4358696238).

Almost surely, 2^55880720250 is an apocalyptic number.

55880720250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55880720250 is an abundant number, since it is smaller than the sum of its proper divisors (83597559366).

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

55880720250 is a wasteful number, since it uses less digits than its factorization.

55880720250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74507647 (or 74507637 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 55880720250 in words is "fifty-five billion, eight hundred eighty million, seven hundred twenty thousand, two hundred fifty".