88155559 has 4 divisors (see below), whose sum is σ = 88216960. Its totient is φ = 88094160.

The previous prime is 88155541. The next prime is 88155577. The reversal of 88155559 is 95555188.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (88155541) and next prime (88155577).

It is a cyclic number.

It is not a de Polignac number, because 88155559 - 2¹¹ = 88153511 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 (88155539) 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, 28494 + ... + 31435.

It is an arithmetic number, because the mean of its divisors is an integer number (22054240).

Almost surely, 2^88155559 is an apocalyptic number.

88155559 is a deficient number, since it is larger than the sum of its proper divisors (61401).

88155559 is a wasteful number, since it uses less digits than its factorization.

88155559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61400.

The product of its digits is 360000, while the sum is 46.

The square root of 88155559 is about 9389.1191812651. The cubic root of 88155559 is about 445.0579548304.

The spelling of 88155559 in words is "eighty-eight million, one hundred fifty-five thousand, five hundred fifty-nine".