56891190 has 64 divisors (see below), whose sum is σ = 146022912. Its totient is φ = 14150400.

The previous prime is 56891147. The next prime is 56891201. The reversal of 56891190 is 9119865.

56891190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56891190² = 6473214999232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27285 + ... + 29295.

It is an arithmetic number, because the mean of its divisors is an integer number (2281608).

Almost surely, 2^56891190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56891190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73011456).

56891190 is an abundant number, since it is smaller than the sum of its proper divisors (89131722).

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

56891190 is a wasteful number, since it uses less digits than its factorization.

56891190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 56891190 is about 7542.6248746706. The cubic root of 56891190 is about 384.6050709337.

The spelling of 56891190 in words is "fifty-six million, eight hundred ninety-one thousand, one hundred ninety".