56448637 has 24 divisors (see below), whose sum is σ = 68297856. Its totient is φ = 46484928.

The previous prime is 56448617. The next prime is 56448641. The reversal of 56448637 is 73684465.

It is a de Polignac number, because none of the positive numbers 2^k-56448637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56448593 and 56448602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56448617) 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, 153628 + ... + 153994.

It is an arithmetic number, because the mean of its divisors is an integer number (2845744).

Almost surely, 2^56448637 is an apocalyptic number.

It is an amenable number.

56448637 is a deficient number, since it is larger than the sum of its proper divisors (11849219).

56448637 is a wasteful number, since it uses less digits than its factorization.

56448637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 490 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 56448637 is about 7513.2307964018. The cubic root of 56448637 is about 383.6052008814.

The spelling of 56448637 in words is "fifty-six million, four hundred forty-eight thousand, six hundred thirty-seven".