56176890 has 128 divisors (see below), whose sum is σ = 170698752. Its totient is φ = 11493120.

The previous prime is 56176853. The next prime is 56176903. The reversal of 56176890 is 9867165.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191584 + ... + 191876.

It is an arithmetic number, because the mean of its divisors is an integer number (1333584).

Almost surely, 2^56176890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56176890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85349376).

56176890 is an abundant number, since it is smaller than the sum of its proper divisors (114521862).

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

56176890 is a wasteful number, since it uses less digits than its factorization.

56176890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 56176890 is about 7495.1244152449. The cubic root of 56176890 is about 382.9886445742.

The spelling of 56176890 in words is "fifty-six million, one hundred seventy-six thousand, eight hundred ninety".