25140261364 has 6 divisors (see below), whose sum is σ = 43995457394. Its totient is φ = 12570130680.

The previous prime is 25140261361. The next prime is 25140261409. The reversal of 25140261364 is 46316204152.

It can be written as a sum of positive squares in only one way, i.e., 22767792100 + 2372469264 = 150890^2 + 48708^2 .

It is a super-2 number, since 2×25140261364² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140261361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3142532667 + ... + 3142532674.

Almost surely, 2^25140261364 is an apocalyptic number.

It is an amenable number.

25140261364 is a deficient number, since it is larger than the sum of its proper divisors (18855196030).

25140261364 is a wasteful number, since it uses less digits than its factorization.

25140261364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285065345 (or 6285065343 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 25140261364 in words is "twenty-five billion, one hundred forty million, two hundred sixty-one thousand, three hundred sixty-four".