51264620 has 24 divisors (see below), whose sum is σ = 117443088. Its totient is φ = 18641600.

The previous prime is 51264617. The next prime is 51264649. The reversal of 51264620 is 2646215.

51264620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51264620² = 5256122527488800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51264620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116291 + ... + 116730.

It is an arithmetic number, because the mean of its divisors is an integer number (4893462).

Almost surely, 2^51264620 is an apocalyptic number.

It is an amenable number.

51264620 is an abundant number, since it is smaller than the sum of its proper divisors (66178468).

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

51264620 is a wasteful number, since it uses less digits than its factorization.

51264620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233041 (or 233039 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51264620 is about 7159.9315639188. The cubic root of 51264620 is about 371.4832594876.

The spelling of 51264620 in words is "fifty-one million, two hundred sixty-four thousand, six hundred twenty".