52157750 has 16 divisors (see below), whose sum is σ = 97639776. Its totient is φ = 20863000.

The previous prime is 52157741. The next prime is 52157771. The reversal of 52157750 is 5775125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104066 + ... + 104565.

It is an arithmetic number, because the mean of its divisors is an integer number (6102486).

Almost surely, 2^52157750 is an apocalyptic number.

52157750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52157750 is a deficient number, since it is larger than the sum of its proper divisors (45482026).

52157750 is a wasteful number, since it uses less digits than its factorization.

52157750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208648 (or 208638 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 52157750 is about 7222.0322624591. The cubic root of 52157750 is about 373.6281728789.

The spelling of 52157750 in words is "fifty-two million, one hundred fifty-seven thousand, seven hundred fifty".