56455279 has 4 divisors (see below), whose sum is σ = 56543184. Its totient is φ = 56367376.

The previous prime is 56455241. The next prime is 56455291. The reversal of 56455279 is 97255465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56455279 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 (56455879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42982 + ... + 44275.

It is an arithmetic number, because the mean of its divisors is an integer number (14135796).

Almost surely, 2^56455279 is an apocalyptic number.

56455279 is a deficient number, since it is larger than the sum of its proper divisors (87905).

56455279 is an equidigital number, since it uses as much as digits as its factorization.

56455279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87904.

The product of its digits is 378000, while the sum is 43.

The square root of 56455279 is about 7513.6728036294. The cubic root of 56455279 is about 383.6202458613.

It can be divided in two parts, 564 and 55279, that multiplied together give a triangular number (31177356 = T₇₈₉₆).

The spelling of 56455279 in words is "fifty-six million, four hundred fifty-five thousand, two hundred seventy-nine".