25225354466 has 16 divisors (see below), whose sum is σ = 42520330944. Its totient is φ = 11136276624.

The previous prime is 25225354459. The next prime is 25225354481. The reversal of 25225354466 is 66445352252.

It is a super-2 number, since 2×25225354466² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21090836 + ... + 21092031.

It is an arithmetic number, because the mean of its divisors is an integer number (2657520684).

Almost surely, 2^25225354466 is an apocalyptic number.

25225354466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25225354466 is a deficient number, since it is larger than the sum of its proper divisors (17294976478).

25225354466 is a wasteful number, since it uses less digits than its factorization.

25225354466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42182905.

The product of its digits is 1728000, while the sum is 44.

The spelling of 25225354466 in words is "twenty-five billion, two hundred twenty-five million, three hundred fifty-four thousand, four hundred sixty-six".