51342960 has 40 divisors (see below), whose sum is σ = 159163920. Its totient is φ = 13691392.

The previous prime is 51342937. The next prime is 51342979. The reversal of 51342960 is 6924315.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 106725 + ... + 107204.

It is an arithmetic number, because the mean of its divisors is an integer number (3979098).

Almost surely, 2^51342960 is an apocalyptic number.

It is an amenable number.

51342960 is an abundant number, since it is smaller than the sum of its proper divisors (107820960).

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

51342960 is a wasteful number, since it uses less digits than its factorization.

51342960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213945 (or 213939 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 51342960 is about 7165.4001981746. The cubic root of 51342960 is about 371.6723904910.

The spelling of 51342960 in words is "fifty-one million, three hundred forty-two thousand, nine hundred sixty".