25416430772 has 6 divisors (see below), whose sum is σ = 44478753858. Its totient is φ = 12708215384.

The previous prime is 25416430759. The next prime is 25416430789. The reversal of 25416430772 is 27703461452.

It can be written as a sum of positive squares in only one way, i.e., 21763920676 + 3652510096 = 147526^2 + 60436^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177053843 + ... + 3177053850.

It is an arithmetic number, because the mean of its divisors is an integer number (7413125643).

Almost surely, 2^25416430772 is an apocalyptic number.

It is an amenable number.

25416430772 is a deficient number, since it is larger than the sum of its proper divisors (19062323086).

25416430772 is a wasteful number, since it uses less digits than its factorization.

25416430772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6354107697 (or 6354107695 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 25416430772 in words is "twenty-five billion, four hundred sixteen million, four hundred thirty thousand, seven hundred seventy-two".