5925916921 has 2 divisors, whose sum is σ = 5925916922. Its totient is φ = 5925916920.

The previous prime is 5925916891. The next prime is 5925916951. The reversal of 5925916921 is 1296195295.

It is a balanced prime because it is at equal distance from previous prime (5925916891) and next prime (5925916951).

It can be written as a sum of positive squares in only one way, i.e., 3547989225 + 2377927696 = 59565^2 + 48764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5925916921 - 2⁷ = 5925916793 is a prime.

It is not a weakly prime, because it can be changed into another prime (5925916951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2962958460 + 2962958461.

It is an arithmetic number, because the mean of its divisors is an integer number (2962958461).

Almost surely, 2^5925916921 is an apocalyptic number.

It is an amenable number.

5925916921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5925916921 is an equidigital number, since it uses as much as digits as its factorization.

5925916921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 49.

The square root of 5925916921 is about 76979.9774032183. The cubic root of 5925916921 is about 1809.6108277788.

The spelling of 5925916921 in words is "five billion, nine hundred twenty-five million, nine hundred sixteen thousand, nine hundred twenty-one".