25500050536 has 8 divisors (see below), whose sum is σ = 47812594770. Its totient is φ = 12750025264.

The previous prime is 25500050531. The next prime is 25500050551. The reversal of 25500050536 is 63505000552.

It can be written as a sum of positive squares in only one way, i.e., 23608322500 + 1891728036 = 153650^2 + 43494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 25500050498 and 25500050507.

It is not an unprimeable number, because it can be changed into a prime (25500050531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593753151 + ... + 1593753166.

Almost surely, 2^25500050536 is an apocalyptic number.

It is an amenable number.

25500050536 is a deficient number, since it is larger than the sum of its proper divisors (22312544234).

25500050536 is a wasteful number, since it uses less digits than its factorization.

25500050536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187506323 (or 3187506319 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 25500050536 in words is "twenty-five billion, five hundred million, fifty thousand, five hundred thirty-six".