55732550 has 12 divisors (see below), whose sum is σ = 103662636. Its totient is φ = 22293000.

The previous prime is 55732549. The next prime is 55732603. The reversal of 55732550 is 5523755.

It is a super-2 number, since 2×55732550² = 6212234259005000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557276 + ... + 557375.

It is an arithmetic number, because the mean of its divisors is an integer number (8638553).

Almost surely, 2^55732550 is an apocalyptic number.

55732550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55732550 is a deficient number, since it is larger than the sum of its proper divisors (47930086).

55732550 is a wasteful number, since it uses less digits than its factorization.

55732550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114663 (or 1114658 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55732550 is about 7465.4236316501. The cubic root of 55732550 is about 381.9762007413.

The spelling of 55732550 in words is "fifty-five million, seven hundred thirty-two thousand, five hundred fifty".