72515627 has 2 divisors, whose sum is σ = 72515628. Its totient is φ = 72515626.

The previous prime is 72515621. The next prime is 72515669. The reversal of 72515627 is 72651527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72515627 - 2⁶ = 72515563 is a prime.

It is not a weakly prime, because it can be changed into another prime (72515621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36257813 + 36257814.

It is an arithmetic number, because the mean of its divisors is an integer number (36257814).

Almost surely, 2^72515627 is an apocalyptic number.

72515627 is a deficient number, since it is larger than the sum of its proper divisors (1).

72515627 is an equidigital number, since it uses as much as digits as its factorization.

72515627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 72515627 is about 8515.6107825569. The cubic root of 72515627 is about 417.0075027356.

The spelling of 72515627 in words is "seventy-two million, five hundred fifteen thousand, six hundred twenty-seven".