51152965451 has 4 divisors (see below), whose sum is σ = 58460531952. Its totient is φ = 43845398952.

The previous prime is 51152965433. The next prime is 51152965483. The reversal of 51152965451 is 15456925115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51152965451 - 2⁶ = 51152965387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51152965051) 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, 3653783240 + ... + 3653783253.

It is an arithmetic number, because the mean of its divisors is an integer number (14615132988).

Almost surely, 2^51152965451 is an apocalyptic number.

51152965451 is a deficient number, since it is larger than the sum of its proper divisors (7307566501).

51152965451 is an equidigital number, since it uses as much as digits as its factorization.

51152965451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307566500.

The product of its digits is 270000, while the sum is 44.

The spelling of 51152965451 in words is "fifty-one billion, one hundred fifty-two million, nine hundred sixty-five thousand, four hundred fifty-one".