2120691925 has 12 divisors (see below), whose sum is σ = 2868718176. Its totient is φ = 1542321200.

The previous prime is 2120691919. The next prime is 2120691941. The reversal of 2120691925 is 5291960212.

2120691925 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2120691925 - 2³ = 2120691917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3855529 + ... + 3856078.

It is an arithmetic number, because the mean of its divisors is an integer number (239059848).

Almost surely, 2^2120691925 is an apocalyptic number.

2120691925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120691925 is a deficient number, since it is larger than the sum of its proper divisors (748026251).

2120691925 is a wasteful number, since it uses less digits than its factorization.

2120691925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711628 (or 7711623 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 2120691925 is about 46050.9709452472. The cubic root of 2120691925 is about 1284.7714017493.

The spelling of 2120691925 in words is "two billion, one hundred twenty million, six hundred ninety-one thousand, nine hundred twenty-five".