4902100225 has 81 divisors (see below), whose sum is σ = 7158422691. Its totient is φ = 3327112800.

The previous prime is 4902100223. The next prime is 4902100237. The reversal of 4902100225 is 5220012094.

The square root of 4902100225 is 70015.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1764756081 + 3137344144 = 42009^2 + 56012^2 .

It is not a de Polignac number, because 4902100225 - 2¹ = 4902100223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 4902100225.

It is not an unprimeable number, because it can be changed into a prime (4902100223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 73165642 + ... + 73165708.

Almost surely, 2^4902100225 is an apocalyptic number.

4902100225 is the 70015-th square number.

4902100225 is the 35008-th centered octagonal number.

It is an amenable number.

4902100225 is a deficient number, since it is larger than the sum of its proper divisors (2256322466).

4902100225 is a wasteful number, since it uses less digits than its factorization.

4902100225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The cubic root of 4902100225 is about 1698.7418863271.

Multiplying 4902100225 by its sum of digits (25), we get a square (122552505625 = 350075²).

4902100225 divided by its sum of digits (25) gives a square (196084009 = 14003²).

The spelling of 4902100225 in words is "four billion, nine hundred two million, one hundred thousand, two hundred twenty-five".