55131332982 has 32 divisors (see below), whose sum is σ = 121477515264. Its totient is φ = 16541052000.

The previous prime is 55131332981. The next prime is 55131333077. The reversal of 55131332982 is 28923313155.

55131332982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55131332982² (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 (55131332981) 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, 4128598 + ... + 4141929.

It is an arithmetic number, because the mean of its divisors is an integer number (3796172352).

Almost surely, 2^55131332982 is an apocalyptic number.

55131332982 is an abundant number, since it is smaller than the sum of its proper divisors (66346182282).

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

55131332982 is a wasteful number, since it uses less digits than its factorization.

55131332982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270644.

The product of its digits is 194400, while the sum is 42.

The spelling of 55131332982 in words is "fifty-five billion, one hundred thirty-one million, three hundred thirty-two thousand, nine hundred eighty-two".