56253649 has 6 divisors (see below), whose sum is σ = 58261190. Its totient is φ = 54313056.

The previous prime is 56253647. The next prime is 56253677. The reversal of 56253649 is 94635265.

It can be written as a sum of positive squares in 3 ways, for example, as 7700625 + 48553024 = 2775^2 + 6968^2 .

It is not a de Polignac number, because 56253649 - 2¹ = 56253647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56253641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32604 + ... + 34285.

Almost surely, 2^56253649 is an apocalyptic number.

It is an amenable number.

56253649 is a deficient number, since it is larger than the sum of its proper divisors (2007541).

56253649 is an equidigital number, since it uses as much as digits as its factorization.

56253649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66947 (or 66918 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 56253649 is about 7500.2432627215. The cubic root of 56253649 is about 383.1630012417.

The spelling of 56253649 in words is "fifty-six million, two hundred fifty-three thousand, six hundred forty-nine".