25147065616 has 40 divisors (see below), whose sum is σ = 49197297600. Its totient is φ = 12451121280.

The previous prime is 25147065613. The next prime is 25147065641. The reversal of 25147065616 is 61656074152.

It is not an unprimeable number, because it can be changed into a prime (25147065613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494981 + ... + 4500571.

It is an arithmetic number, because the mean of its divisors is an integer number (1229932440).

Almost surely, 2^25147065616 is an apocalyptic number.

It is an amenable number.

25147065616 is a deficient number, since it is larger than the sum of its proper divisors (24050231984).

25147065616 is a wasteful number, since it uses less digits than its factorization.

25147065616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 25147065616 in words is "twenty-five billion, one hundred forty-seven million, sixty-five thousand, six hundred sixteen".