53931630 has 32 divisors (see below), whose sum is σ = 133613568. Its totient is φ = 13917600.

The previous prime is 53931551. The next prime is 53931649. The reversal of 53931630 is 3613935.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28066 + ... + 29925.

It is an arithmetic number, because the mean of its divisors is an integer number (4175424).

Almost surely, 2^53931630 is an apocalyptic number.

53931630 is an abundant number, since it is smaller than the sum of its proper divisors (79681938).

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

53931630 is a wasteful number, since it uses less digits than its factorization.

53931630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58032.

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 53931630 is about 7343.8157656630. The cubic root of 53931630 is about 377.8167275937.

The spelling of 53931630 in words is "fifty-three million, nine hundred thirty-one thousand, six hundred thirty".