51412690 has 32 divisors (see below), whose sum is σ = 107049600. Its totient is φ = 17412864.

The previous prime is 51412661. The next prime is 51412693. The reversal of 51412690 is 9621415.

51412690 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 2×51412690² = 5286529386072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51412693) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1386 + ... + 10234.

It is an arithmetic number, because the mean of its divisors is an integer number (3345300).

Almost surely, 2^51412690 is an apocalyptic number.

51412690 is an abundant number, since it is smaller than the sum of its proper divisors (55636910).

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

51412690 is a wasteful number, since it uses less digits than its factorization.

51412690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 51412690 is about 7170.2642908055. The cubic root of 51412690 is about 371.8405731847.

The spelling of 51412690 in words is "fifty-one million, four hundred twelve thousand, six hundred ninety".