51078532 has 24 divisors (see below), whose sum is σ = 91205856. Its totient is φ = 25025088.

The previous prime is 51078529. The next prime is 51078553. The reversal of 51078532 is 23587015.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51078494 and 51078503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44923 + ... + 46045.

It is an arithmetic number, because the mean of its divisors is an integer number (3800244).

Almost surely, 2^51078532 is an apocalyptic number.

It is an amenable number.

51078532 is a deficient number, since it is larger than the sum of its proper divisors (40127324).

51078532 is a wasteful number, since it uses less digits than its factorization.

51078532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 51078532 is about 7146.9246533037. The cubic root of 51078532 is about 371.0332259798.

The spelling of 51078532 in words is "fifty-one million, seventy-eight thousand, five hundred thirty-two".