51961524 has 12 divisors (see below), whose sum is σ = 121243584. Its totient is φ = 17320504.

The previous prime is 51961519. The next prime is 51961541. The reversal of 51961524 is 42516915.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 2165052 + ... + 2165075.

It is an arithmetic number, because the mean of its divisors is an integer number (10103632).

Almost surely, 2^51961524 is an apocalyptic number.

It is an amenable number.

51961524 is an abundant number, since it is smaller than the sum of its proper divisors (69282060).

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

51961524 is a wasteful number, since it uses less digits than its factorization.

51961524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330134 (or 4330132 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 51961524 is about 7208.4342266542. The cubic root of 51961524 is about 373.1590339289.

The spelling of 51961524 in words is "fifty-one million, nine hundred sixty-one thousand, five hundred twenty-four".