55890408 has 64 divisors (see below), whose sum is σ = 162725760. Its totient is φ = 15664896.

The previous prime is 55890403. The next prime is 55890413. The reversal of 55890408 is 80409855.

55890408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55890403) and next prime (55890413).

It is not an unprimeable number, because it can be changed into a prime (55890403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5766 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (2542590).

Almost surely, 2^55890408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55890408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81362880).

55890408 is an abundant number, since it is smaller than the sum of its proper divisors (106835352).

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

55890408 is a wasteful number, since it uses less digits than its factorization.

55890408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6342 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 55890408 is about 7475.9887640365. The cubic root of 55890408 is about 382.3364998170.

The spelling of 55890408 in words is "fifty-five million, eight hundred ninety thousand, four hundred eight".