25241345261 has 8 divisors (see below), whose sum is σ = 27793360224. Its totient is φ = 22732221520.

The previous prime is 25241345257. The next prime is 25241345267. The reversal of 25241345261 is 16254314252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25241345261 - 2² = 25241345257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25241345267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10721570 + ... + 10723923.

It is an arithmetic number, because the mean of its divisors is an integer number (3474170028).

Almost surely, 2^25241345261 is an apocalyptic number.

It is an amenable number.

25241345261 is a deficient number, since it is larger than the sum of its proper divisors (2552014963).

25241345261 is a wasteful number, since it uses less digits than its factorization.

25241345261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21445611.

The product of its digits is 57600, while the sum is 35.

The spelling of 25241345261 in words is "twenty-five billion, two hundred forty-one million, three hundred forty-five thousand, two hundred sixty-one".