51409952 has 24 divisors (see below), whose sum is σ = 110415312. Its totient is φ = 23368000.

The previous prime is 51409933. The next prime is 51409993. The reversal of 51409952 is 25990415.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72674 + ... + 73377.

It is an arithmetic number, because the mean of its divisors is an integer number (4600638).

Almost surely, 2^51409952 is an apocalyptic number.

It is an amenable number.

51409952 is an abundant number, since it is smaller than the sum of its proper divisors (59005360).

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

51409952 is a wasteful number, since it uses less digits than its factorization.

51409952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146072 (or 146064 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 51409952 is about 7170.0733608520. The cubic root of 51409952 is about 371.8339722362.

The spelling of 51409952 in words is "fifty-one million, four hundred nine thousand, nine hundred fifty-two".