72512651 has 2 divisors, whose sum is σ = 72512652. Its totient is φ = 72512650.

The previous prime is 72512611. The next prime is 72512659. The reversal of 72512651 is 15621527.

It is a strong prime.

It is an emirp because it is prime and its reverse (15621527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72512651 - 2²² = 68318347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72512659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36256325 + 36256326.

It is an arithmetic number, because the mean of its divisors is an integer number (36256326).

Almost surely, 2^72512651 is an apocalyptic number.

72512651 is a deficient number, since it is larger than the sum of its proper divisors (1).

72512651 is an equidigital number, since it uses as much as digits as its factorization.

72512651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 72512651 is about 8515.4360428577. The cubic root of 72512651 is about 417.0017980742.

The spelling of 72512651 in words is "seventy-two million, five hundred twelve thousand, six hundred fifty-one".