25266374465 has 8 divisors (see below), whose sum is σ = 30833542080. Its totient is φ = 19870504432.

The previous prime is 25266374369. The next prime is 25266374473. The reversal of 25266374465 is 56447366252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25266374465 - 2⁸ = 25266374209 is a prime.

It is a super-4 number, since 4×25266374465⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42824069 + ... + 42824658.

It is an arithmetic number, because the mean of its divisors is an integer number (3854192760).

Almost surely, 2^25266374465 is an apocalyptic number.

It is an amenable number.

25266374465 is a deficient number, since it is larger than the sum of its proper divisors (5567167615).

25266374465 is an equidigital number, since it uses as much as digits as its factorization.

25266374465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85648791.

The product of its digits is 7257600, while the sum is 50.

The spelling of 25266374465 in words is "twenty-five billion, two hundred sixty-six million, three hundred seventy-four thousand, four hundred sixty-five".