55327777512240 has 40 divisors (see below), whose sum is σ = 171516110288688. Its totient is φ = 14754074003200.

The previous prime is 55327777512191. The next prime is 55327777512247. The reversal of 55327777512240 is 4221577772355.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×55327777512240² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55327777512247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115266202911 + ... + 115266203390.

Almost surely, 2^{55327777512240} is an apocalyptic number.

It is an amenable number.

55327777512240 is an abundant number, since it is smaller than the sum of its proper divisors (116188332776448).

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

55327777512240 is a wasteful number, since it uses less digits than its factorization.

55327777512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230532406317 (or 230532406311 counting only the distinct ones).

The product of its (nonzero) digits is 28812000, while the sum is 57.

The spelling of 55327777512240 in words is "fifty-five trillion, three hundred twenty-seven billion, seven hundred seventy-seven million, five hundred twelve thousand, two hundred forty".