51092540 has 24 divisors (see below), whose sum is σ = 107478672. Its totient is φ = 20401920.

The previous prime is 51092527. The next prime is 51092549. The reversal of 51092540 is 4529015.

51092540 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 2×51092540² = 5220895287303200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51092549) 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 7 ways as a sum of consecutive naturals, for example, 11972 + ... + 15668.

It is an arithmetic number, because the mean of its divisors is an integer number (4478278).

Almost surely, 2^51092540 is an apocalyptic number.

It is an amenable number.

51092540 is an abundant number, since it is smaller than the sum of its proper divisors (56386132).

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

51092540 is a wasteful number, since it uses less digits than its factorization.

51092540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51092540 is about 7147.9045880594. The cubic root of 51092540 is about 371.0671408045.

The spelling of 51092540 in words is "fifty-one million, ninety-two thousand, five hundred forty".