25241901129 has 45 divisors (see below), whose sum is σ = 38281674717. Its totient is φ = 16575319656.

The previous prime is 25241901127. The next prime is 25241901133. The reversal of 25241901129 is 92110914252.

The square root of 25241901129 is 158877.

It is a perfect power (a square), and thus also a powerful number.

25241901129 is a `hidden beast` number, since 2 + 524 + 1 + 9 + 0 + 1 + 129 = 666.

It is not a de Polignac number, because 25241901129 - 2¹ = 25241901127 is a prime.

It is a super-2 number, since 2×25241901129² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25241901093 and 25241901102.

It is not an unprimeable number, because it can be changed into a prime (25241901127) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 181596342 + ... + 181596480.

Almost surely, 2^25241901129 is an apocalyptic number.

25241901129 is the 158877-th square number.

25241901129 is the 79439-th centered octagonal number.

It is an amenable number.

25241901129 is a deficient number, since it is larger than the sum of its proper divisors (13039773588).

25241901129 is an frugal number, since it uses more digits than its factorization.

25241901129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

Multiplying 25241901129 by its sum of digits (36), we get a square (908708440644 = 953262²).

The spelling of 25241901129 in words is "twenty-five billion, two hundred forty-one million, nine hundred one thousand, one hundred twenty-nine".