55559709270 has 64 divisors (see below), whose sum is σ = 159556098240. Its totient is φ = 13676235264.

The previous prime is 55559709269. The next prime is 55559709277. The reversal of 55559709270 is 7290795555.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55559709277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7910979 + ... + 7917998.

It is an arithmetic number, because the mean of its divisors is an integer number (2493064035).

Almost surely, 2^55559709270 is an apocalyptic number.

55559709270 is an abundant number, since it is smaller than the sum of its proper divisors (103996388970).

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

55559709270 is a wasteful number, since it uses less digits than its factorization.

55559709270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15829006 (or 15829000 counting only the distinct ones).

The product of its (nonzero) digits is 4961250, while the sum is 54.

The spelling of 55559709270 in words is "fifty-five billion, five hundred fifty-nine million, seven hundred nine thousand, two hundred seventy".