2169961025 has 12 divisors (see below), whose sum is σ = 2832370800. Its totient is φ = 1644601680.

The previous prime is 2169961009. The next prime is 2169961061. The reversal of 2169961025 is 5201699612.

It is not a de Polignac number, because 2169961025 - 2⁴ = 2169961009 is a prime.

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, 2283695 + ... + 2284644.

It is an arithmetic number, because the mean of its divisors is an integer number (236030900).

Almost surely, 2^2169961025 is an apocalyptic number.

2169961025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2169961025 is a deficient number, since it is larger than the sum of its proper divisors (662409775).

2169961025 is a wasteful number, since it uses less digits than its factorization.

2169961025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568368 (or 4568363 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 2169961025 is about 46582.8404565458. The cubic root of 2169961025 is about 1294.6448393225.

The spelling of 2169961025 in words is "two billion, one hundred sixty-nine million, nine hundred sixty-one thousand, twenty-five".