56406271 has 6 divisors (see below), whose sum is σ = 56703920. Its totient is φ = 56110128.

The previous prime is 56406253. The next prime is 56406277. The reversal of 56406271 is 17260465.

It is a happy number.

It is not a de Polignac number, because 56406271 - 2¹³ = 56398079 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 (56406277) 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 5 ways as a sum of consecutive naturals, for example, 53770 + ... + 54808.

Almost surely, 2^56406271 is an apocalyptic number.

56406271 is a deficient number, since it is larger than the sum of its proper divisors (297649).

56406271 is an equidigital number, since it uses as much as digits as its factorization.

56406271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56406271 is about 7510.4108409594. The cubic root of 56406271 is about 383.5092086881.

It can be divided in two parts, 5640 and 6271, that added together give a palindrome (11911).

The spelling of 56406271 in words is "fifty-six million, four hundred six thousand, two hundred seventy-one".