88555121 has 4 divisors (see below), whose sum is σ = 90715044. Its totient is φ = 86395200.

The previous prime is 88555099. The next prime is 88555133. The reversal of 88555121 is 12155588.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 75881521 = 3560^2 + 8711^2 .

It is not a de Polignac number, because 88555121 - 2¹⁰ = 88554097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88555141) 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, 1079900 + ... + 1079981.

It is an arithmetic number, because the mean of its divisors is an integer number (22678761).

Almost surely, 2^88555121 is an apocalyptic number.

It is an amenable number.

88555121 is a deficient number, since it is larger than the sum of its proper divisors (2159923).

88555121 is a wasteful number, since it uses less digits than its factorization.

88555121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159922.

The product of its digits is 16000, while the sum is 35.

The square root of 88555121 is about 9410.3730531791. The cubic root of 88555121 is about 445.7293447244.

The spelling of 88555121 in words is "eighty-eight million, five hundred fifty-five thousand, one hundred twenty-one".