51765672 has 32 divisors (see below), whose sum is σ = 147902400. Its totient is φ = 14790144.

The previous prime is 51765661. The next prime is 51765713. The reversal of 51765672 is 27656715.

It is a super-3 number, since 3×51765672³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51765672.

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, 153897 + ... + 154232.

It is an arithmetic number, because the mean of its divisors is an integer number (4621950).

Almost surely, 2^51765672 is an apocalyptic number.

It is an amenable number.

51765672 is an abundant number, since it is smaller than the sum of its proper divisors (96136728).

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

51765672 is a wasteful number, since it uses less digits than its factorization.

51765672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308145 (or 308141 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 51765672 is about 7194.8364818111. The cubic root of 51765672 is about 372.6896099381.

The spelling of 51765672 in words is "fifty-one million, seven hundred sixty-five thousand, six hundred seventy-two".