56454455249 has 2 divisors, whose sum is σ = 56454455250. Its totient is φ = 56454455248.

The previous prime is 56454455119. The next prime is 56454455279. The reversal of 56454455249 is 94255445465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56406250000 + 48205249 = 237500^2 + 6943^2 .

It is a cyclic number.

It is not a de Polignac number, because 56454455249 - 2²⁰ = 56453406673 is a prime.

It is a super-2 number, since 2×56454455249² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56454455249.

It is not a weakly prime, because it can be changed into another prime (56454455279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28227227624 + 28227227625.

It is an arithmetic number, because the mean of its divisors is an integer number (28227227625).

Almost surely, 2^56454455249 is an apocalyptic number.

It is an amenable number.

56454455249 is a deficient number, since it is larger than the sum of its proper divisors (1).

56454455249 is an equidigital number, since it uses as much as digits as its factorization.

56454455249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280000, while the sum is 53.

The spelling of 56454455249 in words is "fifty-six billion, four hundred fifty-four million, four hundred fifty-five thousand, two hundred forty-nine".