51429952 has 28 divisors (see below), whose sum is σ = 116636800. Its totient is φ = 22041216.

The previous prime is 51429943. The next prime is 51429953. The reversal of 51429952 is 25992415.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (51429953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56952 + ... + 57847.

It is an arithmetic number, because the mean of its divisors is an integer number (4165600).

Almost surely, 2^51429952 is an apocalyptic number.

It is an amenable number.

51429952 is an abundant number, since it is smaller than the sum of its proper divisors (65206848).

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

51429952 is a wasteful number, since it uses less digits than its factorization.

51429952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114818 (or 114808 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 51429952 is about 7171.4679111044. The cubic root of 51429952 is about 371.8821841420.

The spelling of 51429952 in words is "fifty-one million, four hundred twenty-nine thousand, nine hundred fifty-two".