51957030 has 32 divisors (see below), whose sum is σ = 125848800. Its totient is φ = 13727232.

The previous prime is 51957007. The next prime is 51957041. The reversal of 51957030 is 3075915.

It is a happy number.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4675 + ... + 11214.

It is an arithmetic number, because the mean of its divisors is an integer number (3932775).

Almost surely, 2^51957030 is an apocalyptic number.

51957030 is an abundant number, since it is smaller than the sum of its proper divisors (73891770).

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

51957030 is a wasteful number, since it uses less digits than its factorization.

51957030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16008.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 51957030 is about 7208.1225017337. The cubic root of 51957030 is about 373.1482758081.

The spelling of 51957030 in words is "fifty-one million, nine hundred fifty-seven thousand, thirty".