51406960 has 40 divisors (see below), whose sum is σ = 130388976. Its totient is φ = 18693120.

The previous prime is 51406931. The next prime is 51406961. The reversal of 51406960 is 6960415.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51406961) 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, 28329 + ... + 30088.

Almost surely, 2^51406960 is an apocalyptic number.

It is an amenable number.

51406960 is an abundant number, since it is smaller than the sum of its proper divisors (78982016).

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

51406960 is a wasteful number, since it uses less digits than its factorization.

51406960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58441 (or 58435 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 51406960 is about 7169.8647128101. The cubic root of 51406960 is about 371.8267586599.

It can be divided in two parts, 5140 and 6960, that added together give a square (12100 = 110²).

The spelling of 51406960 in words is "fifty-one million, four hundred six thousand, nine hundred sixty".