87250571 has 2 divisors, whose sum is σ = 87250572. Its totient is φ = 87250570.

The previous prime is 87250547. The next prime is 87250601. The reversal of 87250571 is 17505278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87250571 - 2²⁶ = 20141707 is a prime.

It is a super-2 number, since 2×87250571² = 15225324279652082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87250271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43625285 + 43625286.

It is an arithmetic number, because the mean of its divisors is an integer number (43625286).

Almost surely, 2^87250571 is an apocalyptic number.

87250571 is a deficient number, since it is larger than the sum of its proper divisors (1).

87250571 is an equidigital number, since it uses as much as digits as its factorization.

87250571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 87250571 is about 9340.8014110139. The cubic root of 87250571 is about 443.5297536670.

The spelling of 87250571 in words is "eighty-seven million, two hundred fifty thousand, five hundred seventy-one".