56403897 has 8 divisors (see below), whose sum is σ = 82042080. Its totient is φ = 34184160.

The previous prime is 56403877. The next prime is 56403929. The reversal of 56403897 is 79830465.

It is a happy number.

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

It is not a de Polignac number, because 56403897 - 2¹² = 56399801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56403827) 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, 854572 + ... + 854637.

It is an arithmetic number, because the mean of its divisors is an integer number (10255260).

Almost surely, 2^56403897 is an apocalyptic number.

It is an amenable number.

56403897 is a deficient number, since it is larger than the sum of its proper divisors (25638183).

56403897 is a wasteful number, since it uses less digits than its factorization.

56403897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709223.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 56403897 is about 7510.2527920171. The cubic root of 56403897 is about 383.5038282956.

The spelling of 56403897 in words is "fifty-six million, four hundred three thousand, eight hundred ninety-seven".