1425664633255 has 4 divisors (see below), whose sum is σ = 1710797559912. Its totient is φ = 1140531706600.

The previous prime is 1425664633249. The next prime is 1425664633271. The reversal of 1425664633255 is 5523364665241.

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

It is not a de Polignac number, because 1425664633255 - 2³ = 1425664633247 is a prime.

It is a super-2 number, since 2×1425664633255² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142566463321 + ... + 142566463330.

It is an arithmetic number, because the mean of its divisors is an integer number (427699389978).

Almost surely, 2^{1425664633255} is an apocalyptic number.

1425664633255 is a deficient number, since it is larger than the sum of its proper divisors (285132926657).

1425664633255 is an equidigital number, since it uses as much as digits as its factorization.

1425664633255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285132926656.

The product of its digits is 15552000, while the sum is 52.

The spelling of 1425664633255 in words is "one trillion, four hundred twenty-five billion, six hundred sixty-four million, six hundred thirty-three thousand, two hundred fifty-five".