2169772925 has 24 divisors (see below), whose sum is σ = 2923503360. Its totient is φ = 1591401600.

The previous prime is 2169772879. The next prime is 2169772933. The reversal of 2169772925 is 5292779612.

It is not a de Polignac number, because 2169772925 - 2⁸ = 2169772669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58952 + ... + 88401.

It is an arithmetic number, because the mean of its divisors is an integer number (121812640).

Almost surely, 2^2169772925 is an apocalyptic number.

2169772925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2169772925 is a deficient number, since it is larger than the sum of its proper divisors (753730435).

2169772925 is a wasteful number, since it uses less digits than its factorization.

2169772925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147413 (or 147408 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 2169772925 is about 46580.8214289959. The cubic root of 2169772925 is about 1294.6074300897.

The spelling of 2169772925 in words is "two billion, one hundred sixty-nine million, seven hundred seventy-two thousand, nine hundred twenty-five".