55507774270 has 48 divisors (see below), whose sum is σ = 112481474112. Its totient is φ = 19604059200.

The previous prime is 55507774243. The next prime is 55507774271. The reversal of 55507774270 is 7247770555.

It is a happy number.

It is a super-2 number, since 2×55507774270² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55507774271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334806 + ... + 472345.

It is an arithmetic number, because the mean of its divisors is an integer number (2343364044).

Almost surely, 2^55507774270 is an apocalyptic number.

55507774270 is an abundant number, since it is smaller than the sum of its proper divisors (56973699842).

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

55507774270 is a wasteful number, since it uses less digits than its factorization.

55507774270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807217 (or 807194 counting only the distinct ones).

The product of its (nonzero) digits is 2401000, while the sum is 49.

The spelling of 55507774270 in words is "fifty-five billion, five hundred seven million, seven hundred seventy-four thousand, two hundred seventy".