88025500021 has 4 divisors (see below), whose sum is σ = 88180202700. Its totient is φ = 87870797344.

The previous prime is 88025499983. The next prime is 88025500037. The reversal of 88025500021 is 12000552088.

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 26516539921 + 61508960100 = 162839^2 + 248010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88025500021 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 (88025500051) 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, 77350486 + ... + 77351623.

It is an arithmetic number, because the mean of its divisors is an integer number (22045050675).

Almost surely, 2^88025500021 is an apocalyptic number.

It is an amenable number.

88025500021 is a deficient number, since it is larger than the sum of its proper divisors (154702679).

88025500021 is a wasteful number, since it uses less digits than its factorization.

88025500021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154702678.

The product of its (nonzero) digits is 6400, while the sum is 31.

The spelling of 88025500021 in words is "eighty-eight billion, twenty-five million, five hundred thousand, twenty-one".