2546425465 has 4 divisors (see below), whose sum is σ = 3055710564. Its totient is φ = 2037140368.

The previous prime is 2546425459. The next prime is 2546425501. The reversal of 2546425465 is 5645246452.

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 311310736 + 2235114729 = 17644^2 + 47277^2 .

It is a cyclic number.

It is not a de Polignac number, because 2546425465 - 2⁷ = 2546425337 is a prime.

It is a Duffinian 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, 254642542 + ... + 254642551.

It is an arithmetic number, because the mean of its divisors is an integer number (763927641).

Almost surely, 2^2546425465 is an apocalyptic number.

It is an amenable number.

2546425465 is a deficient number, since it is larger than the sum of its proper divisors (509285099).

2546425465 is an equidigital number, since it uses as much as digits as its factorization.

2546425465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509285098.

The product of its digits is 1152000, while the sum is 43.

The square root of 2546425465 is about 50462.1191092883. The cubic root of 2546425465 is about 1365.5585409379.

The spelling of 2546425465 in words is "two billion, five hundred forty-six million, four hundred twenty-five thousand, four hundred sixty-five".