51072600 has 48 divisors (see below), whose sum is σ = 158326920. Its totient is φ = 13619200.

The previous prime is 51072599. The next prime is 51072601. The reversal of 51072600 is 627015.

It is an interprime number because it is at equal distance from previous prime (51072599) and next prime (51072601).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51072601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41961 + ... + 43160.

Almost surely, 2^51072600 is an apocalyptic number.

51072600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51072600 is an abundant number, since it is smaller than the sum of its proper divisors (107254320).

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

51072600 is a wasteful number, since it uses less digits than its factorization.

51072600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85140 (or 85131 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 51072600 is about 7146.5096375783. The cubic root of 51072600 is about 371.0188621220.

Adding to 51072600 its reverse (627015), we get a palindrome (51699615).

The spelling of 51072600 in words is "fifty-one million, seventy-two thousand, six hundred".