25420969654 has 16 divisors (see below), whose sum is σ = 38624742720. Its totient is φ = 12546144000.

The previous prime is 25420969643. The next prime is 25420969657. The reversal of 25420969654 is 45696902452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420969657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612052 + ... + 652264.

It is an arithmetic number, because the mean of its divisors is an integer number (2414046420).

Almost surely, 2^25420969654 is an apocalyptic number.

25420969654 is a deficient number, since it is larger than the sum of its proper divisors (13203773066).

25420969654 is a wasteful number, since it uses less digits than its factorization.

25420969654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44295.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 25420969654 in words is "twenty-five billion, four hundred twenty million, nine hundred sixty-nine thousand, six hundred fifty-four".