2198012625 has 128 divisors (see below), whose sum is σ = 4325068800. Its totient is φ = 1098360000.

The previous prime is 2198012617. The next prime is 2198012681. The reversal of 2198012625 is 5262108912.

2198012625 is a `hidden beast` number, since 2 + 19 + 8 + 0 + 12 + 625 = 666.

It is not a de Polignac number, because 2198012625 - 2³ = 2198012617 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2198012625.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9682762 + ... + 9682988.

It is an arithmetic number, because the mean of its divisors is an integer number (33789600).

Almost surely, 2^2198012625 is an apocalyptic number.

2198012625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2198012625 is a deficient number, since it is larger than the sum of its proper divisors (2127056175).

2198012625 is a wasteful number, since it uses less digits than its factorization.

2198012625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 2198012625 is about 46882.9673228988. The cubic root of 2198012625 is about 1300.1996981189.

The spelling of 2198012625 in words is "two billion, one hundred ninety-eight million, twelve thousand, six hundred twenty-five".