55327992 has 16 divisors (see below), whose sum is σ = 138320040. Its totient is φ = 18442656.

The previous prime is 55327991. The next prime is 55327999. The reversal of 55327992 is 29972355.

It is a super-2 number, since 2×55327992² = 6122373397504128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55327991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152643 + ... + 1152690.

Almost surely, 2^55327992 is an apocalyptic number.

It is an amenable number.

55327992 is an abundant number, since it is smaller than the sum of its proper divisors (82992048).

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

55327992 is a wasteful number, since it uses less digits than its factorization.

55327992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305342 (or 2305338 counting only the distinct ones).

The product of its digits is 170100, while the sum is 42.

The square root of 55327992 is about 7438.2788331710. The cubic root of 55327992 is about 381.0497107243.

It can be divided in two parts, 5532799 and 2, that added together give a triangular number (5532801 = T₃₃₂₆).

The spelling of 55327992 in words is "fifty-five million, three hundred twenty-seven thousand, nine hundred ninety-two".