25001501264 has 10 divisors (see below), whose sum is σ = 48440408730. Its totient is φ = 12500750624.

The previous prime is 25001501263. The next prime is 25001501269. The reversal of 25001501264 is 46210510052.

It can be written as a sum of positive squares in only one way, i.e., 23472691264 + 1528810000 = 153208^2 + 39100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001501263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781296899 + ... + 781296930.

It is an arithmetic number, because the mean of its divisors is an integer number (4844040873).

Almost surely, 2^25001501264 is an apocalyptic number.

It is an amenable number.

25001501264 is a deficient number, since it is larger than the sum of its proper divisors (23438907466).

25001501264 is a wasteful number, since it uses less digits than its factorization.

25001501264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562593837 (or 1562593831 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 25001501264 in words is "twenty-five billion, one million, five hundred one thousand, two hundred sixty-four".