72504007 has 2 divisors, whose sum is σ = 72504008. Its totient is φ = 72504006.

The previous prime is 72503971. The next prime is 72504017. The reversal of 72504007 is 70040527.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72504007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72504017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36252003 + 36252004.

It is an arithmetic number, because the mean of its divisors is an integer number (36252004).

Almost surely, 2^72504007 is an apocalyptic number.

72504007 is a deficient number, since it is larger than the sum of its proper divisors (1).

72504007 is an equidigital number, since it uses as much as digits as its factorization.

72504007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 72504007 is about 8514.9284788541. The cubic root of 72504007 is about 416.9852276011.

The spelling of 72504007 in words is "seventy-two million, five hundred four thousand, seven".