56451 has 8 divisors (see below), whose sum is σ = 77824. Its totient is φ = 36360.

The previous prime is 56443. The next prime is 56453. The reversal of 56451 is 15465.

It is a happy number.

56451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56451 - 2³ = 56443 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56453) 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, 211 + ... + 396.

It is an arithmetic number, because the mean of its divisors is an integer number (9728).

2⁵⁶⁴⁵¹ is an apocalyptic number.

56451 is a deficient number, since it is larger than the sum of its proper divisors (21373).

56451 is a wasteful number, since it uses less digits than its factorization.

56451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 600, while the sum is 21.

The square root of 56451 is about 237.5941918482. The cubic root of 56451 is about 38.3610553514.

The spelling of 56451 in words is "fifty-six thousand, four hundred fifty-one".