925080399721 has 3 divisors (see below), whose sum is σ = 925081361533. Its totient is φ = 925079437910.

The previous prime is 925080399709. The next prime is 925080399833. The reversal of 925080399721 is 127993080529.

The square root of 925080399721 is 961811.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 925080399721 - 2¹¹ = 925080397673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (925080399701) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 480906 + ... + 1442716.

Almost surely, 2^925080399721 is an apocalyptic number.

925080399721 is the 961811-st square number.

925080399721 is the 480906-th centered octagonal number.

It is an amenable number.

925080399721 is a deficient number, since it is larger than the sum of its proper divisors (961812).

925080399721 is an frugal number, since it uses more digits than its factorization.

925080399721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923622 (or 961811 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

It can be divided in two parts, 925080 and 399721, that added together give a square (1324801 = 1151²).

The spelling of 925080399721 in words is "nine hundred twenty-five billion, eighty million, three hundred ninety-nine thousand, seven hundred twenty-one".