25693525264 has 45 divisors (see below), whose sum is σ = 54733208439. Its totient is φ = 11675669280.

The previous prime is 25693525243. The next prime is 25693525271. The reversal of 25693525264 is 46252539652.

The square root of 25693525264 is 160292.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7051027 + ... + 7054669.

Almost surely, 2^25693525264 is an apocalyptic number.

25693525264 is the 160292-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25693525264

25693525264 is an abundant number, since it is smaller than the sum of its proper divisors (29039683175).

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

25693525264 is an frugal number, since it uses more digits than its factorization.

25693525264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316 (or 3656 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 49.

Multiplying 25693525264 by its sum of digits (49), we get a square (1258982737936 = 1122044²).

The spelling of 25693525264 in words is "twenty-five billion, six hundred ninety-three million, five hundred twenty-five thousand, two hundred sixty-four".