87725259 has 12 divisors (see below), whose sum is σ = 128792352. Its totient is φ = 57524400.

The previous prime is 87725237. The next prime is 87725291. The reversal of 87725259 is 95252778.

It is a happy number.

It is not a de Polignac number, because 87725259 - 2²⁰ = 86676683 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87725959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79347 + ... + 80444.

It is an arithmetic number, because the mean of its divisors is an integer number (10732696).

Almost surely, 2^87725259 is an apocalyptic number.

87725259 is a deficient number, since it is larger than the sum of its proper divisors (41067093).

87725259 is a wasteful number, since it uses less digits than its factorization.

87725259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159858 (or 159855 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 87725259 is about 9366.1763276163. The cubic root of 87725259 is about 444.3326427370.

The spelling of 87725259 in words is "eighty-seven million, seven hundred twenty-five thousand, two hundred fifty-nine".