72532919 has 2 divisors, whose sum is σ = 72532920. Its totient is φ = 72532918.

The previous prime is 72532907. The next prime is 72532921. The reversal of 72532919 is 91923527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72532919 - 2⁴ = 72532903 is a prime.

It is a super-2 number, since 2×72532919² = 10522048677321122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 72532921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72532949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36266459 + 36266460.

It is an arithmetic number, because the mean of its divisors is an integer number (36266460).

Almost surely, 2^72532919 is an apocalyptic number.

72532919 is a deficient number, since it is larger than the sum of its proper divisors (1).

72532919 is an equidigital number, since it uses as much as digits as its factorization.

72532919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 38.

The square root of 72532919 is about 8516.6260338235. The cubic root of 72532919 is about 417.0406464912.

The spelling of 72532919 in words is "seventy-two million, five hundred thirty-two thousand, nine hundred nineteen".