51572007451 has 2 divisors, whose sum is σ = 51572007452. Its totient is φ = 51572007450.

The previous prime is 51572007437. The next prime is 51572007457. The reversal of 51572007451 is 15470027515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51572007451 - 2⁵ = 51572007419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51572007451.

It is not a weakly prime, because it can be changed into another prime (51572007457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25786003725 + 25786003726.

It is an arithmetic number, because the mean of its divisors is an integer number (25786003726).

Almost surely, 2^51572007451 is an apocalyptic number.

51572007451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51572007451 is an equidigital number, since it uses as much as digits as its factorization.

51572007451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49000, while the sum is 37.

The spelling of 51572007451 in words is "fifty-one billion, five hundred seventy-two million, seven thousand, four hundred fifty-one".