56401213 has 8 divisors (see below), whose sum is σ = 61610976. Its totient is φ = 51205200.

The previous prime is 56401211. The next prime is 56401217. The reversal of 56401213 is 31210465.

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

It is a cyclic number.

It is not a de Polignac number, because 56401213 - 2¹ = 56401211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56401211) 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, 6378 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (7701372).

Almost surely, 2^56401213 is an apocalyptic number.

It is an amenable number.

56401213 is a deficient number, since it is larger than the sum of its proper divisors (5209763).

56401213 is a wasteful number, since it uses less digits than its factorization.

56401213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56401213 is about 7510.0741008328. The cubic root of 56401213 is about 383.4977451426.

Adding to 56401213 its reverse (31210465), we get a palindrome (87611678).

The spelling of 56401213 in words is "fifty-six million, four hundred one thousand, two hundred thirteen".