88601521 has 4 divisors (see below), whose sum is σ = 88946532. Its totient is φ = 88256512.

The previous prime is 88601479. The next prime is 88601549. The reversal of 88601521 is 12510688.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55711296 + 32890225 = 7464^2 + 5735^2 .

It is a cyclic number.

It is not a de Polignac number, because 88601521 - 2¹⁷ = 88470449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88601561) 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, 172120 + ... + 172633.

It is an arithmetic number, because the mean of its divisors is an integer number (22236633).

Almost surely, 2^88601521 is an apocalyptic number.

It is an amenable number.

88601521 is a deficient number, since it is larger than the sum of its proper divisors (345011).

88601521 is a wasteful number, since it uses less digits than its factorization.

88601521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345010.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 88601521 is about 9412.8380948575. The cubic root of 88601521 is about 445.8071803527.

The spelling of 88601521 in words is "eighty-eight million, six hundred one thousand, five hundred twenty-one".