25280532775 has 6 divisors (see below), whose sum is σ = 31347860672. Its totient is φ = 20224426200.

The previous prime is 25280532769. The next prime is 25280532787. The reversal of 25280532775 is 57723508252.

It is not a de Polignac number, because 25280532775 - 2¹¹ = 25280530727 is a prime.

It is a Duffinian number.

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, 505610631 + ... + 505610680.

Almost surely, 2^25280532775 is an apocalyptic number.

25280532775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25280532775 is a deficient number, since it is larger than the sum of its proper divisors (6067327897).

25280532775 is a wasteful number, since it uses less digits than its factorization.

25280532775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011221321 (or 1011221316 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 25280532775 in words is "twenty-five billion, two hundred eighty million, five hundred thirty-two thousand, seven hundred seventy-five".