56505190 has 16 divisors (see below), whose sum is σ = 116239392. Its totient is φ = 19373184.

The previous prime is 56505151. The next prime is 56505199. The reversal of 56505190 is 9150565.

It is a happy number.

It is a super-2 number, since 2×56505190² = 6385672993872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56505199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403539 + ... + 403678.

It is an arithmetic number, because the mean of its divisors is an integer number (7264962).

Almost surely, 2^56505190 is an apocalyptic number.

56505190 is an abundant number, since it is smaller than the sum of its proper divisors (59734202).

56505190 is a wasteful number, since it uses less digits than its factorization.

56505190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807231.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 56505190 is about 7516.9934149233. The cubic root of 56505190 is about 383.7332629298.

The spelling of 56505190 in words is "fifty-six million, five hundred five thousand, one hundred ninety".