56531401 has 8 divisors (see below), whose sum is σ = 59091264. Its totient is φ = 53980080.

The previous prime is 56531359. The next prime is 56531429. The reversal of 56531401 is 10413565.

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

It is not a de Polignac number, because 56531401 - 2¹¹ = 56529353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56531471) 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, 14115 + ... + 17671.

It is an arithmetic number, because the mean of its divisors is an integer number (7386408).

Almost surely, 2^56531401 is an apocalyptic number.

It is an amenable number.

56531401 is a deficient number, since it is larger than the sum of its proper divisors (2559863).

56531401 is a wasteful number, since it uses less digits than its factorization.

56531401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56531401 is about 7518.7366624986. The cubic root of 56531401 is about 383.7925877325.

Adding to 56531401 its reverse (10413565), we get a palindrome (66944966).

The spelling of 56531401 in words is "fifty-six million, five hundred thirty-one thousand, four hundred one".