25454066261 has 8 divisors (see below), whose sum is σ = 27415288320. Its totient is φ = 23493303792.

The previous prime is 25454066237. The next prime is 25454066273. The reversal of 25454066261 is 16266045452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25454066261 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 (25454066201) 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, 4760 + ... + 225678.

It is an arithmetic number, because the mean of its divisors is an integer number (3426911040).

Almost surely, 2^25454066261 is an apocalyptic number.

It is an amenable number.

25454066261 is a deficient number, since it is larger than the sum of its proper divisors (1961222059).

25454066261 is a wasteful number, since it uses less digits than its factorization.

25454066261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229795.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 25454066261 in words is "twenty-five billion, four hundred fifty-four million, sixty-six thousand, two hundred sixty-one".