72532457 has 2 divisors, whose sum is σ = 72532458. Its totient is φ = 72532456.

The previous prime is 72532433. The next prime is 72532483. The reversal of 72532457 is 75423527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72522256 + 10201 = 8516^2 + 101^2 .

It is a cyclic number.

It is not a de Polignac number, because 72532457 - 2¹⁶ = 72466921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72532487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36266228 + 36266229.

It is an arithmetic number, because the mean of its divisors is an integer number (36266229).

Almost surely, 2^72532457 is an apocalyptic number.

It is an amenable number.

72532457 is a deficient number, since it is larger than the sum of its proper divisors (1).

72532457 is an equidigital number, since it uses as much as digits as its factorization.

72532457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 35.

The square root of 72532457 is about 8516.5989103632. The cubic root of 72532457 is about 417.0397610395.

The spelling of 72532457 in words is "seventy-two million, five hundred thirty-two thousand, four hundred fifty-seven".