55732650 has 48 divisors (see below), whose sum is σ = 140505888. Its totient is φ = 14616000.

The previous prime is 55732631. The next prime is 55732661. The reversal of 55732650 is 5623755.

55732650 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 2×55732650² = 6212256552045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6105 + ... + 12195.

It is an arithmetic number, because the mean of its divisors is an integer number (2927206).

Almost surely, 2^55732650 is an apocalyptic number.

55732650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55732650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70252944).

55732650 is an abundant number, since it is smaller than the sum of its proper divisors (84773238).

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

55732650 is a wasteful number, since it uses less digits than its factorization.

55732650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167 (or 6162 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 55732650 is about 7465.4303291907. The cubic root of 55732650 is about 381.9764291990.

The spelling of 55732650 in words is "fifty-five million, seven hundred thirty-two thousand, six hundred fifty".