25454545584 has 80 divisors (see below), whose sum is σ = 72016224000. Its totient is φ = 7699408128.

The previous prime is 25454545577. The next prime is 25454545591. The reversal of 25454545584 is 48554545452.

It is an interprime number because it is at equal distance from previous prime (25454545577) and next prime (25454545591).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308884 + ... + 382515.

It is an arithmetic number, because the mean of its divisors is an integer number (900202800).

Almost surely, 2^25454545584 is an apocalyptic number.

25454545584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25454545584 is an abundant number, since it is smaller than the sum of its proper divisors (46561678416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25454545584 is a wasteful number, since it uses less digits than its factorization.

25454545584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691482 (or 691476 counting only the distinct ones).

The product of its digits is 12800000, while the sum is 51.

The spelling of 25454545584 in words is "twenty-five billion, four hundred fifty-four million, five hundred forty-five thousand, five hundred eighty-four".