55938750 has 80 divisors (see below), whose sum is σ = 159848832. Its totient is φ = 12780000.

The previous prime is 55938739. The next prime is 55938761. The reversal of 55938750 is 5783955.

It is an interprime number because it is at equal distance from previous prime (55938739) and next prime (55938761).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25185 + ... + 27315.

Almost surely, 2^55938750 is an apocalyptic number.

55938750 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 55938750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79924416).

55938750 is an abundant number, since it is smaller than the sum of its proper divisors (103910082).

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

55938750 is a wasteful number, since it uses less digits than its factorization.

55938750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2148 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 55938750 is about 7479.2212161428. The cubic root of 55938750 is about 382.4467011044.

The spelling of 55938750 in words is "fifty-five million, nine hundred thirty-eight thousand, seven hundred fifty".