25040447016 has 64 divisors (see below), whose sum is σ = 70964846400. Its totient is φ = 7299237888.

The previous prime is 25040447009. The next prime is 25040447071. The reversal of 25040447016 is 61074404052.

It is a super-2 number, since 2×25040447016² (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 15 ways as a sum of consecutive naturals, for example, 2106121 + ... + 2117976.

It is an arithmetic number, because the mean of its divisors is an integer number (1108825725).

Almost surely, 2^25040447016 is an apocalyptic number.

25040447016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25040447016 is an abundant number, since it is smaller than the sum of its proper divisors (45924399384).

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

25040447016 is a wasteful number, since it uses less digits than its factorization.

25040447016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224138 (or 4224134 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 25040447016 in words is "twenty-five billion, forty million, four hundred forty-seven thousand, sixteen".