51545984 has 32 divisors (see below), whose sum is σ = 117361200. Its totient is φ = 22090752.

The previous prime is 51545983. The next prime is 51546007. The reversal of 51545984 is 48954515.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51545983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27869 + ... + 29660.

Almost surely, 2^51545984 is an apocalyptic number.

It is an amenable number.

51545984 is an abundant number, since it is smaller than the sum of its proper divisors (65815216).

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

51545984 is an equidigital number, since it uses as much as digits as its factorization.

51545984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57550 (or 57538 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 51545984 is about 7179.5531894401. The cubic root of 51545984 is about 372.1616440148.

The spelling of 51545984 in words is "fifty-one million, five hundred forty-five thousand, nine hundred eighty-four".