88020581 has 4 divisors (see below), whose sum is σ = 96022464. Its totient is φ = 80018700.

The previous prime is 88020547. The next prime is 88020599. The reversal of 88020581 is 18502088.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88020581 - 2¹⁴ = 88004197 is a prime.

It is a super-2 number, since 2×88020581² = 15495245359155122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88020281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000925 + ... + 4000946.

It is an arithmetic number, because the mean of its divisors is an integer number (24005616).

Almost surely, 2^88020581 is an apocalyptic number.

It is an amenable number.

88020581 is a deficient number, since it is larger than the sum of its proper divisors (8001883).

88020581 is a wasteful number, since it uses less digits than its factorization.

88020581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001882.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 88020581 is about 9381.9284265017. The cubic root of 88020581 is about 444.8306909672.

The spelling of 88020581 in words is "eighty-eight million, twenty thousand, five hundred eighty-one".