25510560801 has 48 divisors (see below), whose sum is σ = 38181605952. Its totient is φ = 15135690240.

The previous prime is 25510560793. The next prime is 25510560809. The reversal of 25510560801 is 10806501552.

It is an interprime number because it is at equal distance from previous prime (25510560793) and next prime (25510560809).

It is not a de Polignac number, because 25510560801 - 2³ = 25510560793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25510560809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3626850 + ... + 3633876.

It is an arithmetic number, because the mean of its divisors is an integer number (795450124).

Almost surely, 2^25510560801 is an apocalyptic number.

It is an amenable number.

25510560801 is a deficient number, since it is larger than the sum of its proper divisors (12671045151).

25510560801 is a wasteful number, since it uses less digits than its factorization.

25510560801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7262 (or 7251 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 25510560801 in words is "twenty-five billion, five hundred ten million, five hundred sixty thousand, eight hundred one".