53732730 has 16 divisors (see below), whose sum is σ = 128958624. Its totient is φ = 14328720.

The previous prime is 53732687. The next prime is 53732747. The reversal of 53732730 is 3723735.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1791091 = 53732730 / (5 + 3 + 7 + 3 + 2 + 7 + 3 + 0).

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, 895516 + ... + 895575.

It is an arithmetic number, because the mean of its divisors is an integer number (8059914).

Almost surely, 2^53732730 is an apocalyptic number.

53732730 is an abundant number, since it is smaller than the sum of its proper divisors (75225894).

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

53732730 is a wasteful number, since it uses less digits than its factorization.

53732730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791101.

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 53732730 is about 7330.2612504603. The cubic root of 53732730 is about 377.3516923966.

The spelling of 53732730 in words is "fifty-three million, seven hundred thirty-two thousand, seven hundred thirty".