56286690 has 16 divisors (see below), whose sum is σ = 135088128. Its totient is φ = 15009776.

The previous prime is 56286673. The next prime is 56286697. The reversal of 56286690 is 9668265.

It is a super-2 number, since 2×56286690² = 6336382942312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56286697) 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, 938082 + ... + 938141.

It is an arithmetic number, because the mean of its divisors is an integer number (8443008).

Almost surely, 2^56286690 is an apocalyptic number.

56286690 is an abundant number, since it is smaller than the sum of its proper divisors (78801438).

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

56286690 is a wasteful number, since it uses less digits than its factorization.

56286690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876233.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 56286690 is about 7502.4456012690. The cubic root of 56286690 is about 383.2380044405.

The spelling of 56286690 in words is "fifty-six million, two hundred eighty-six thousand, six hundred ninety".