56290861512 has 36 divisors (see below), whose sum is σ = 152459869185. Its totient is φ = 18762949440.

The previous prime is 56290861511. The next prime is 56290861519. The reversal of 56290861512 is 21516809265.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

56290861512 is a `hidden beast` number, since 5 + 6 + 29 + 0 + 8 + 615 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51959378916 + 4331482596 = 227946^2 + 65814^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=167766.

It is a super-2 number, since 2×56290861512² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56290861511) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1999212 + ... + 2027172.

Almost surely, 2^56290861512 is an apocalyptic number.

It is an amenable number.

56290861512 is an abundant number, since it is smaller than the sum of its proper divisors (96169007673).

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

56290861512 is an frugal number, since it uses more digits than its factorization.

56290861512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55934 (or 27966 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 56290861512 in words is "fifty-six billion, two hundred ninety million, eight hundred sixty-one thousand, five hundred twelve".