51495774 has 32 divisors (see below), whose sum is σ = 115983360. Its totient is φ = 15100800.

The previous prime is 51495751. The next prime is 51495797. The reversal of 51495774 is 47759415.

It is a happy number.

51495774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51495751) and next prime (51495797).

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 15 ways as a sum of consecutive naturals, for example, 10539 + ... + 14630.

It is an arithmetic number, because the mean of its divisors is an integer number (3624480).

Almost surely, 2^51495774 is an apocalyptic number.

51495774 is an abundant number, since it is smaller than the sum of its proper divisors (64487586).

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

51495774 is a wasteful number, since it uses less digits than its factorization.

51495774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25216.

The product of its digits is 176400, while the sum is 42.

The square root of 51495774 is about 7176.0556017913. The cubic root of 51495774 is about 372.0407661417.

The spelling of 51495774 in words is "fifty-one million, four hundred ninety-five thousand, seven hundred seventy-four".