56490249 has 8 divisors (see below), whose sum is σ = 79284640. Its totient is φ = 35678016.

The previous prime is 56490223. The next prime is 56490253. The reversal of 56490249 is 94209465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56490249 - 2¹² = 56486153 is a prime.

It is a super-2 number, since 2×56490249² = 6382296464164002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56490349) 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, 495472 + ... + 495585.

It is an arithmetic number, because the mean of its divisors is an integer number (9910580).

Almost surely, 2^56490249 is an apocalyptic number.

It is an amenable number.

56490249 is a deficient number, since it is larger than the sum of its proper divisors (22794391).

56490249 is a wasteful number, since it uses less digits than its factorization.

56490249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991079.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 56490249 is about 7515.9995343268. Note that the first 3 decimals coincide. The cubic root of 56490249 is about 383.6994379302.

The spelling of 56490249 in words is "fifty-six million, four hundred ninety thousand, two hundred forty-nine".