80772530 has 32 divisors (see below), whose sum is σ = 148960944. Its totient is φ = 31522816.

The previous prime is 80772521. The next prime is 80772539. The reversal of 80772530 is 3527708.

It is an interprime number because it is at equal distance from previous prime (80772521) and next prime (80772539).

It can be written as a sum of positive squares in 8 ways, for example, as 71081761 + 9690769 = 8431^2 + 3113^2 .

It is not an unprimeable number, because it can be changed into a prime (80772539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135914 + ... + 136506.

Almost surely, 2^80772530 is an apocalyptic number.

80772530 is a deficient number, since it is larger than the sum of its proper divisors (68188414).

80772530 is a wasteful number, since it uses less digits than its factorization.

80772530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 80772530 is about 8987.3538931100. The cubic root of 80772530 is about 432.2694685100.

It can be divided in two parts, 807 and 72530, that added together give a palindrome (73337).

The spelling of 80772530 in words is "eighty million, seven hundred seventy-two thousand, five hundred thirty".