51425190 has 48 divisors (see below), whose sum is σ = 137328048. Its totient is φ = 13341888.

The previous prime is 51425161. The next prime is 51425203. The reversal of 51425190 is 9152415.

51425190 is a `hidden beast` number, since 5 + 142 + 519 + 0 = 666.

51425190 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 2×51425190² = 5289100333072200, which contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 4392 + ... + 11051.

It is an arithmetic number, because the mean of its divisors is an integer number (2861001).

Almost surely, 2^51425190 is an apocalyptic number.

51425190 is an abundant number, since it is smaller than the sum of its proper divisors (85902858).

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

51425190 is a wasteful number, since it uses less digits than its factorization.

51425190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15493 (or 15490 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 51425190 is about 7171.1358932878. The cubic root of 51425190 is about 371.8707060211.

It can be divided in two parts, 51425 and 190, that added together give a palindrome (51615).

The spelling of 51425190 in words is "fifty-one million, four hundred twenty-five thousand, one hundred ninety".