88261551 has 24 divisors (see below), whose sum is σ = 147049760. Its totient is φ = 49968576.

The previous prime is 88261549. The next prime is 88261553. The reversal of 88261551 is 15516288.

88261551 is a `hidden beast` number, since 88 + 26 + 1 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (88261549) and next prime (88261553).

It is not a de Polignac number, because 88261551 - 2¹ = 88261549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88261553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441 + ... + 13293.

Almost surely, 2^88261551 is an apocalyptic number.

88261551 is a deficient number, since it is larger than the sum of its proper divisors (58788209).

88261551 is a wasteful number, since it uses less digits than its factorization.

88261551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12975 (or 12972 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 88261551 is about 9394.7618916075. The cubic root of 88261551 is about 445.2362521125.

The spelling of 88261551 in words is "eighty-eight million, two hundred sixty-one thousand, five hundred fifty-one".