1999962725 has 12 divisors (see below), whose sum is σ = 2484098820. Its totient is φ = 1597296000.

The previous prime is 1999962691. The next prime is 1999962803. The reversal of 1999962725 is 5272699991.

It can be written as a sum of positive squares in 6 ways, for example, as 45792289 + 1954170436 = 6767^2 + 44206^2 .

It is not a de Polignac number, because 1999962725 - 2⁶ = 1999962661 is a prime.

It is a Curzon 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, 51530 + ... + 81579.

It is an arithmetic number, because the mean of its divisors is an integer number (207008235).

Almost surely, 2^1999962725 is an apocalyptic number.

It is an amenable number.

1999962725 is a deficient number, since it is larger than the sum of its proper divisors (484136095).

1999962725 is a wasteful number, since it uses less digits than its factorization.

1999962725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133720 (or 133715 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 59.

The square root of 1999962725 is about 44720.9428008847. The cubic root of 1999962725 is about 1259.9132225867.

The spelling of 1999962725 in words is "one billion, nine hundred ninety-nine million, nine hundred sixty-two thousand, seven hundred twenty-five".