51761652 has 12 divisors (see below), whose sum is σ = 120777216. Its totient is φ = 17253880.

The previous prime is 51761623. The next prime is 51761653. The reversal of 51761652 is 25616715.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51761653) 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, 2156724 + ... + 2156747.

It is an arithmetic number, because the mean of its divisors is an integer number (10064768).

Almost surely, 2^51761652 is an apocalyptic number.

It is an amenable number.

51761652 is an abundant number, since it is smaller than the sum of its proper divisors (69015564).

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

51761652 is a wasteful number, since it uses less digits than its factorization.

51761652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313478 (or 4313476 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 51761652 is about 7194.5571093709. The cubic root of 51761652 is about 372.6799622896.

The spelling of 51761652 in words is "fifty-one million, seven hundred sixty-one thousand, six hundred fifty-two".