2198657625 has 32 divisors (see below), whose sum is σ = 3674686080. Its totient is φ = 1167451200.

The previous prime is 2198657579. The next prime is 2198657641. The reversal of 2198657625 is 5267568912.

It is not a de Polignac number, because 2198657625 - 2¹⁰ = 2198656601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73074 + ... + 98676.

It is an arithmetic number, because the mean of its divisors is an integer number (114833940).

Almost surely, 2^2198657625 is an apocalyptic number.

2198657625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2198657625 is a deficient number, since it is larger than the sum of its proper divisors (1476028455).

2198657625 is a wasteful number, since it uses less digits than its factorization.

2198657625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25850 (or 25840 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 2198657625 is about 46889.8456491382. The cubic root of 2198657625 is about 1300.3268655394.

The spelling of 2198657625 in words is "two billion, one hundred ninety-eight million, six hundred fifty-seven thousand, six hundred twenty-five".