51485924 has 24 divisors (see below), whose sum is σ = 103262208. Its totient is φ = 22003200.

The previous prime is 51485923. The next prime is 51485957. The reversal of 51485924 is 42958415.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51485923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8324 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (4302592).

Almost surely, 2^51485924 is an apocalyptic number.

It is an amenable number.

51485924 is an abundant number, since it is smaller than the sum of its proper divisors (51776284).

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

51485924 is a wasteful number, since it uses less digits than its factorization.

51485924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5193 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 51485924 is about 7175.3692587908. The cubic root of 51485924 is about 372.0170435788.

The spelling of 51485924 in words is "fifty-one million, four hundred eighty-five thousand, nine hundred twenty-four".