5925925921 has 2 divisors, whose sum is σ = 5925925922. Its totient is φ = 5925925920.

The previous prime is 5925925871. The next prime is 5925925949. The reversal of 5925925921 is 1295295295.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5570980321 + 354945600 = 74639^2 + 18840^2 .

It is a cyclic number.

It is not a de Polignac number, because 5925925921 - 2¹³ = 5925917729 is a prime.

It is not a weakly prime, because it can be changed into another prime (5925925981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2962962960 + 2962962961.

It is an arithmetic number, because the mean of its divisors is an integer number (2962962961).

Almost surely, 2^5925925921 is an apocalyptic number.

It is an amenable number.

5925925921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5925925921 is an equidigital number, since it uses as much as digits as its factorization.

5925925921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 49.

The square root of 5925925921 is about 76980.0358599553. The cubic root of 5925925921 is about 1809.6117438952.

The spelling of 5925925921 in words is "five billion, nine hundred twenty-five million, nine hundred twenty-five thousand, nine hundred twenty-one".