51542304 has 48 divisors (see below), whose sum is σ = 147601440. Its totient is φ = 15618560.

The previous prime is 51542299. The next prime is 51542311. The reversal of 51542304 is 40324515.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23349 + ... + 25460.

It is an arithmetic number, because the mean of its divisors is an integer number (3075030).

Almost surely, 2^51542304 is an apocalyptic number.

It is an amenable number.

51542304 is an abundant number, since it is smaller than the sum of its proper divisors (96059136).

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

51542304 is a wasteful number, since it uses less digits than its factorization.

51542304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48833 (or 48825 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 51542304 is about 7179.2969015078. The cubic root of 51542304 is about 372.1527872793.

Adding to 51542304 its reverse (40324515), we get a palindrome (91866819).

The spelling of 51542304 in words is "fifty-one million, five hundred forty-two thousand, three hundred four".