25761562036 has 36 divisors (see below), whose sum is σ = 52593586500. Its totient is φ = 11009005056.

The previous prime is 25761562031. The next prime is 25761562049. The reversal of 25761562036 is 63026516752.

It can be written as a sum of positive squares in 2 ways, for example, as 10008801936 + 15752760100 = 100044^2 + 125510^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25761561983 and 25761562001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25761562031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119901 + ... + 256708.

Almost surely, 2^25761562036 is an apocalyptic number.

It is an amenable number.

25761562036 is an abundant number, since it is smaller than the sum of its proper divisors (26832024464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25761562036 is a wasteful number, since it uses less digits than its factorization.

25761562036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376976 (or 376967 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 25761562036 in words is "twenty-five billion, seven hundred sixty-one million, five hundred sixty-two thousand, thirty-six".