25061643790 has 32 divisors (see below), whose sum is σ = 45974822400. Its totient is φ = 9834508704.

The previous prime is 25061643781. The next prime is 25061643791. The reversal of 25061643790 is 9734616052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061643791) 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, 3490 + ... + 223909.

It is an arithmetic number, because the mean of its divisors is an integer number (1436713200).

Almost surely, 2^25061643790 is an apocalyptic number.

25061643790 is a deficient number, since it is larger than the sum of its proper divisors (20913178610).

25061643790 is a wasteful number, since it uses less digits than its factorization.

25061643790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227616.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 25061643790 in words is "twenty-five billion, sixty-one million, six hundred forty-three thousand, seven hundred ninety".