25280381254 has 12 divisors (see below), whose sum is σ = 38406674124. Its totient is φ = 12480182052.

The previous prime is 25280381237. The next prime is 25280381263. The reversal of 25280381254 is 45218308252.

It is a super-2 number, since 2×25280381254² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000192 + ... + 1025155.

It is an arithmetic number, because the mean of its divisors is an integer number (3200556177).

Almost surely, 2^25280381254 is an apocalyptic number.

25280381254 is a deficient number, since it is larger than the sum of its proper divisors (13126292870).

25280381254 is an equidigital number, since it uses as much as digits as its factorization.

25280381254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025507 (or 2025428 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 25280381254 in words is "twenty-five billion, two hundred eighty million, three hundred eighty-one thousand, two hundred fifty-four".