25206280461 has 8 divisors (see below), whose sum is σ = 37342637760. Its totient is φ = 16804186956.

The previous prime is 25206280459. The next prime is 25206280469. The reversal of 25206280461 is 16408260252.

It is a happy number.

25206280461 is a `hidden beast` number, since 2 + 5 + 20 + 628 + 0 + 4 + 6 + 1 = 666.

It is not a de Polignac number, because 25206280461 - 2¹ = 25206280459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25206280469) 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, 466782945 + ... + 466782998.

It is an arithmetic number, because the mean of its divisors is an integer number (4667829720).

Almost surely, 2^25206280461 is an apocalyptic number.

It is an amenable number.

25206280461 is a deficient number, since it is larger than the sum of its proper divisors (12136357299).

25206280461 is an equidigital number, since it uses as much as digits as its factorization.

25206280461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933565952 (or 933565946 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 25206280461 in words is "twenty-five billion, two hundred six million, two hundred eighty thousand, four hundred sixty-one".