51642452 has 24 divisors (see below), whose sum is σ = 96610752. Its totient is φ = 24094400.

The previous prime is 51642443. The next prime is 51642457. The reversal of 51642452 is 25424615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51642457) 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 7 ways as a sum of consecutive naturals, for example, 3074 + ... + 10617.

It is an arithmetic number, because the mean of its divisors is an integer number (4025448).

Almost surely, 2^51642452 is an apocalyptic number.

It is an amenable number.

51642452 is a deficient number, since it is larger than the sum of its proper divisors (44968300).

51642452 is a wasteful number, since it uses less digits than its factorization.

51642452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759 (or 13757 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 51642452 is about 7186.2682944627. The cubic root of 51642452 is about 372.3936654279.

The spelling of 51642452 in words is "fifty-one million, six hundred forty-two thousand, four hundred fifty-two".