88555420 has 12 divisors (see below), whose sum is σ = 185966424. Its totient is φ = 35422160.

The previous prime is 88555403. The next prime is 88555427. The reversal of 88555420 is 2455588.

It is a super-2 number, since 2×88555420² = 15684124822752800, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 88555420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88555427) 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, 2213866 + ... + 2213905.

It is an arithmetic number, because the mean of its divisors is an integer number (15497202).

Almost surely, 2^88555420 is an apocalyptic number.

It is an amenable number.

88555420 is an abundant number, since it is smaller than the sum of its proper divisors (97411004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88555420 is a wasteful number, since it uses less digits than its factorization.

88555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427780 (or 4427778 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 88555420 is about 9410.3889398898. The cubic root of 88555420 is about 445.7298463815.

The spelling of 88555420 in words is "eighty-eight million, five hundred fifty-five thousand, four hundred twenty".