51878524 has 12 divisors (see below), whose sum is σ = 94734864. Its totient is φ = 24811424.

The previous prime is 51878521. The next prime is 51878527. The reversal of 51878524 is 42587815.

It is an interprime number because it is at equal distance from previous prime (51878521) and next prime (51878527).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51878521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281857 + ... + 282040.

It is an arithmetic number, because the mean of its divisors is an integer number (7894572).

Almost surely, 2^51878524 is an apocalyptic number.

It is an amenable number.

51878524 is a deficient number, since it is larger than the sum of its proper divisors (42856340).

51878524 is a wasteful number, since it uses less digits than its factorization.

51878524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563924 (or 563922 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 51878524 is about 7202.6747809408. The cubic root of 51878524 is about 372.9602412897.

The spelling of 51878524 in words is "fifty-one million, eight hundred seventy-eight thousand, five hundred twenty-four".