51919952733 has 24 divisors (see below), whose sum is σ = 82607578560. Its totient is φ = 31161130560.

The previous prime is 51919952731. The next prime is 51919952759. The reversal of 51919952733 is 33725991915.

51919952733 is a `hidden beast` number, since 519 + 1 + 9 + 9 + 52 + 73 + 3 = 666.

It is not a de Polignac number, because 51919952733 - 2¹ = 51919952731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51919952733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51919952731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2535648 + ... + 2556041.

It is an arithmetic number, because the mean of its divisors is an integer number (3441982440).

Almost surely, 2^51919952733 is an apocalyptic number.

It is an amenable number.

51919952733 is a deficient number, since it is larger than the sum of its proper divisors (30687625827).

51919952733 is a wasteful number, since it uses less digits than its factorization.

51919952733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091809 (or 5091806 counting only the distinct ones).

The product of its digits is 2296350, while the sum is 54.

The spelling of 51919952733 in words is "fifty-one billion, nine hundred nineteen million, nine hundred fifty-two thousand, seven hundred thirty-three".