72500803 has 2 divisors, whose sum is σ = 72500804. Its totient is φ = 72500802.

The previous prime is 72500777. The next prime is 72500809. The reversal of 72500803 is 30800527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72500803 - 2¹³ = 72492611 is a prime.

It is not a weakly prime, because it can be changed into another prime (72500809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36250401 + 36250402.

It is an arithmetic number, because the mean of its divisors is an integer number (36250402).

Almost surely, 2^72500803 is an apocalyptic number.

72500803 is a deficient number, since it is larger than the sum of its proper divisors (1).

72500803 is an equidigital number, since it uses as much as digits as its factorization.

72500803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 72500803 is about 8514.7403366163. The cubic root of 72500803 is about 416.9790852264.

The spelling of 72500803 in words is "seventy-two million, five hundred thousand, eight hundred three".