108890553 has 4 divisors (see below), whose sum is σ = 145187408. Its totient is φ = 72593700.

The previous prime is 108890549. The next prime is 108890557. The reversal of 108890553 is 355098801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (108890549) and next prime (108890557).

It is not a de Polignac number, because 108890553 - 2² = 108890549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108890557) 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, 18148423 + ... + 18148428.

It is an arithmetic number, because the mean of its divisors is an integer number (36296852).

Almost surely, 2^108890553 is an apocalyptic number.

It is an amenable number.

108890553 is a deficient number, since it is larger than the sum of its proper divisors (36296855).

108890553 is an equidigital number, since it uses as much as digits as its factorization.

108890553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36296854.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 108890553 is about 10435.0636318137. The cubic root of 108890553 is about 477.5256830388.

The spelling of 108890553 in words is "one hundred eight million, eight hundred ninety thousand, five hundred fifty-three".