51942575 has 6 divisors (see below), whose sum is σ = 64408824. Its totient is φ = 41554040.

The previous prime is 51942557. The next prime is 51942601. The reversal of 51942575 is 57524915.

It is a happy number.

51942575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51942575 - 2¹² = 51938479 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 1038827 + ... + 1038876.

It is an arithmetic number, because the mean of its divisors is an integer number (10734804).

Almost surely, 2^51942575 is an apocalyptic number.

51942575 is a deficient number, since it is larger than the sum of its proper divisors (12466249).

51942575 is a wasteful number, since it uses less digits than its factorization.

51942575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077713 (or 2077708 counting only the distinct ones).

The product of its digits is 63000, while the sum is 38.

The square root of 51942575 is about 7207.1197436979. The cubic root of 51942575 is about 373.1136679882.

The spelling of 51942575 in words is "fifty-one million, nine hundred forty-two thousand, five hundred seventy-five".