25634063445 has 16 divisors (see below), whose sum is σ = 43427119680. Its totient is φ = 12867294464.

The previous prime is 25634063443. The next prime is 25634063449. The reversal of 25634063445 is 54436043652.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25634063445 - 2¹ = 25634063443 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25634063397 and 25634063406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25634063443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50262615 + ... + 50263124.

It is an arithmetic number, because the mean of its divisors is an integer number (2714194980).

Almost surely, 2^25634063445 is an apocalyptic number.

It is an amenable number.

25634063445 is a deficient number, since it is larger than the sum of its proper divisors (17793056235).

25634063445 is a wasteful number, since it uses less digits than its factorization.

25634063445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100525764.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 25634063445 in words is "twenty-five billion, six hundred thirty-four million, sixty-three thousand, four hundred forty-five".