80261572 has 6 divisors (see below), whose sum is σ = 140457758. Its totient is φ = 40130784.

The previous prime is 80261561. The next prime is 80261591. The reversal of 80261572 is 27516208.

It can be written as a sum of positive squares in only one way, i.e., 51036736 + 29224836 = 7144^2 + 5406^2 .

It is a super-2 number, since 2×80261572² = 12883839879822368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032693 + ... + 10032700.

Almost surely, 2^80261572 is an apocalyptic number.

It is an amenable number.

80261572 is a deficient number, since it is larger than the sum of its proper divisors (60196186).

80261572 is a wasteful number, since it uses less digits than its factorization.

80261572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20065397 (or 20065395 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80261572 is about 8958.8822963582. The cubic root of 80261572 is about 431.3560435992.

The spelling of 80261572 in words is "eighty million, two hundred sixty-one thousand, five hundred seventy-two".