87185253 has 8 divisors (see below), whose sum is σ = 116919648. Its totient is φ = 57787184.

The previous prime is 87185251. The next prime is 87185257. The reversal of 87185253 is 35258178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87185253 - 2¹ = 87185251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87185251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83475 + ... + 84512.

It is an arithmetic number, because the mean of its divisors is an integer number (14614956).

Almost surely, 2^87185253 is an apocalyptic number.

It is an amenable number.

87185253 is a deficient number, since it is larger than the sum of its proper divisors (29734395).

87185253 is a wasteful number, since it uses less digits than its factorization.

87185253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168163.

The product of its digits is 67200, while the sum is 39.

The square root of 87185253 is about 9337.3043754608. The cubic root of 87185253 is about 443.4190468125.

The spelling of 87185253 in words is "eighty-seven million, one hundred eighty-five thousand, two hundred fifty-three".