2106993925 has 12 divisors (see below), whose sum is σ = 2614402980. Its totient is φ = 1684478720.

The previous prime is 2106993877. The next prime is 2106993943. The reversal of 2106993925 is 5293996012.

It can be written as a sum of positive squares in 6 ways, for example, as 40564161 + 2066429764 = 6369^2 + 45458^2 .

It is not a de Polignac number, because 2106993925 - 2²⁹ = 1570123013 is a prime.

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, 11691 + ... + 65959.

It is an arithmetic number, because the mean of its divisors is an integer number (217866915).

Almost surely, 2^2106993925 is an apocalyptic number.

2106993925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2106993925 is a deficient number, since it is larger than the sum of its proper divisors (507409055).

2106993925 is a wasteful number, since it uses less digits than its factorization.

2106993925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55832 (or 55827 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 2106993925 is about 45902.0034965795. The cubic root of 2106993925 is about 1281.9992205768. Note that the first 3 decimals are identical.

The spelling of 2106993925 in words is "two billion, one hundred six million, nine hundred ninety-three thousand, nine hundred twenty-five".