87552381 has 8 divisors (see below), whose sum is σ = 133413184. Its totient is φ = 50029920.

The previous prime is 87552379. The next prime is 87552383. The reversal of 87552381 is 18325578.

It is an interprime number because it is at equal distance from previous prime (87552379) and next prime (87552383).

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

It is not a de Polignac number, because 87552381 - 2¹ = 87552379 is a prime.

It is a super-2 number, since 2×87552381² = 15330838837538322, 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 (87552383) 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, 2084560 + ... + 2084601.

It is an arithmetic number, because the mean of its divisors is an integer number (16676648).

Almost surely, 2^87552381 is an apocalyptic number.

It is an amenable number.

87552381 is a deficient number, since it is larger than the sum of its proper divisors (45860803).

87552381 is a wasteful number, since it uses less digits than its factorization.

87552381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169171.

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

The square root of 87552381 is about 9356.9429302524. The cubic root of 87552381 is about 444.0405723414.

The spelling of 87552381 in words is "eighty-seven million, five hundred fifty-two thousand, three hundred eighty-one".