51951884 has 6 divisors (see below), whose sum is σ = 90915804. Its totient is φ = 25975940.

The previous prime is 51951883. The next prime is 51951899. The reversal of 51951884 is 48815915.

It is a super-2 number, since 2×51951884² = 5397996502298912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51951883) by changing a digit.

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 as a sum of consecutive naturals, namely, 6493982 + ... + 6493989.

It is an arithmetic number, because the mean of its divisors is an integer number (15152634).

Almost surely, 2^51951884 is an apocalyptic number.

It is an amenable number.

51951884 is a deficient number, since it is larger than the sum of its proper divisors (38963920).

51951884 is a wasteful number, since it uses less digits than its factorization.

51951884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12987975 (or 12987973 counting only the distinct ones).

The product of its digits is 57600, while the sum is 41.

The square root of 51951884 is about 7207.7655344774. The cubic root of 51951884 is about 373.1359561122.

The spelling of 51951884 in words is "fifty-one million, nine hundred fifty-one thousand, eight hundred eighty-four".