25010137664 has 14 divisors (see below), whose sum is σ = 49629492054. Its totient is φ = 12505068800.

The previous prime is 25010137661. The next prime is 25010137667. The reversal of 25010137664 is 46673101052.

It is an interprime number because it is at equal distance from previous prime (25010137661) and next prime (25010137667).

It can be written as a sum of positive squares in only one way, i.e., 14563662400 + 10446475264 = 120680^2 + 102208^2 .

It is not an unprimeable number, because it can be changed into a prime (25010137661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195391637 + ... + 195391764.

Almost surely, 2^25010137664 is an apocalyptic number.

It is an amenable number.

25010137664 is a deficient number, since it is larger than the sum of its proper divisors (24619354390).

25010137664 is an equidigital number, since it uses as much as digits as its factorization.

25010137664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390783413 (or 390783403 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 25010137664 in words is "twenty-five billion, ten million, one hundred thirty-seven thousand, six hundred sixty-four".