25134553863 has 6 divisors (see below), whose sum is σ = 36305466704. Its totient is φ = 16756369236.

The previous prime is 25134553831. The next prime is 25134553897. The reversal of 25134553863 is 36835543152.

25134553863 is a `hidden beast` number, since 2 + 5 + 1 + 34 + 553 + 8 + 63 = 666.

It is not a de Polignac number, because 25134553863 - 2⁵ = 25134553831 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 (25134553823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1396364095 + ... + 1396364112.

Almost surely, 2^25134553863 is an apocalyptic number.

25134553863 is a deficient number, since it is larger than the sum of its proper divisors (11170912841).

25134553863 is a wasteful number, since it uses less digits than its factorization.

25134553863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792728213 (or 2792728210 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 25134553863 in words is "twenty-five billion, one hundred thirty-four million, five hundred fifty-three thousand, eight hundred sixty-three".