25134988601 has 2 divisors, whose sum is σ = 25134988602. Its totient is φ = 25134988600.

The previous prime is 25134988591. The next prime is 25134988643. The reversal of 25134988601 is 10688943152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23684902201 + 1450086400 = 153899^2 + 38080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25134988601 is a prime.

It is not a weakly prime, because it can be changed into another prime (25134988661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567494300 + 12567494301.

It is an arithmetic number, because the mean of its divisors is an integer number (12567494301).

Almost surely, 2^25134988601 is an apocalyptic number.

It is an amenable number.

25134988601 is a deficient number, since it is larger than the sum of its proper divisors (1).

25134988601 is an equidigital number, since it uses as much as digits as its factorization.

25134988601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 25134988601 in words is "twenty-five billion, one hundred thirty-four million, nine hundred eighty-eight thousand, six hundred one".