56490255 has 24 divisors (see below), whose sum is σ = 98515872. Its totient is φ = 29943744.

The previous prime is 56490253. The next prime is 56490257. The reversal of 56490255 is 55209465.

56490255 is a `hidden beast` number, since 5 + 649 + 0 + 2 + 5 + 5 = 666.

It is a Cunningham number, because it is equal to 7516²-1.

It is an interprime number because it is at equal distance from previous prime (56490253) and next prime (56490257).

It is not a de Polignac number, because 56490255 - 2¹ = 56490253 is a prime.

It is a super-2 number, since 2×56490255² = 6382297819930050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56490253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3757 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (4104828).

Almost surely, 2^56490255 is an apocalyptic number.

56490255 is a deficient number, since it is larger than the sum of its proper divisors (42025617).

56490255 is a wasteful number, since it uses less digits than its factorization.

56490255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695 (or 7692 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 56490255 is about 7515.9999334753. Note that the first 4 decimals coincide. The cubic root of 56490255 is about 383.6994515148.

The spelling of 56490255 in words is "fifty-six million, four hundred ninety thousand, two hundred fifty-five".