56541397 has 16 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 48176640.

The previous prime is 56541389. The next prime is 56541409. The reversal of 56541397 is 79314565.

It is a cyclic number.

It is not a de Polignac number, because 56541397 - 2³ = 56541389 is a prime.

It is a super-3 number, since 3×56541397³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56541307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18879 + ... + 21667.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^56541397 is an apocalyptic number.

It is an amenable number.

56541397 is a deficient number, since it is larger than the sum of its proper divisors (9079403).

56541397 is a wasteful number, since it uses less digits than its factorization.

56541397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916.

The product of its digits is 113400, while the sum is 40.

The square root of 56541397 is about 7519.4013724498. The cubic root of 56541397 is about 383.8152074008.

The spelling of 56541397 in words is "fifty-six million, five hundred forty-one thousand, three hundred ninety-seven".