455090251865 has 4 divisors (see below), whose sum is σ = 546108302244. Its totient is φ = 364072201488.

The previous prime is 455090251817. The next prime is 455090251867. The reversal of 455090251865 is 568152090554.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 127714031641 + 327376220224 = 357371^2 + 572168^2 .

It is a cyclic number.

It is not a de Polignac number, because 455090251865 - 2¹⁰ = 455090250841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (455090251867) 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, 45509025182 + ... + 45509025191.

It is an arithmetic number, because the mean of its divisors is an integer number (136527075561).

Almost surely, 2^455090251865 is an apocalyptic number.

It is an amenable number.

455090251865 is a deficient number, since it is larger than the sum of its proper divisors (91018050379).

455090251865 is an equidigital number, since it uses as much as digits as its factorization.

455090251865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91018050378.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 455090251865 in words is "four hundred fifty-five billion, ninety million, two hundred fifty-one thousand, eight hundred sixty-five".