51601125 has 32 divisors (see below), whose sum is σ = 88208640. Its totient is φ = 26769600.

The previous prime is 51601117. The next prime is 51601129. The reversal of 51601125 is 52110615.

It is not a de Polignac number, because 51601125 - 2³ = 51601117 is a prime.

It is a super-2 number, since 2×51601125² = 5325352202531250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51601129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12016 + ... + 15734.

It is an arithmetic number, because the mean of its divisors is an integer number (2756520).

Almost surely, 2^51601125 is an apocalyptic number.

It is an amenable number.

51601125 is a deficient number, since it is larger than the sum of its proper divisors (36607515).

51601125 is a wasteful number, since it uses less digits than its factorization.

51601125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 51601125 is about 7183.3923044757. The cubic root of 51601125 is about 372.2943026006.

The spelling of 51601125 in words is "fifty-one million, six hundred one thousand, one hundred twenty-five".