25098728202 has 20 divisors (see below), whose sum is σ = 56239743186. Its totient is φ = 8366242680.

The previous prime is 25098728201. The next prime is 25098728203. The reversal of 25098728202 is 20282789052.

It is an interprime number because it is at equal distance from previous prime (25098728201) and next prime (25098728203).

It can be written as a sum of positive squares in only one way, i.e., 18810396801 + 6288331401 = 137151^2 + 79299^2 .

It is not an unprimeable number, because it can be changed into a prime (25098728201) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77465049 + ... + 77465372.

Almost surely, 2^25098728202 is an apocalyptic number.

25098728202 is an abundant number, since it is smaller than the sum of its proper divisors (31141014984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25098728202 is a wasteful number, since it uses less digits than its factorization.

25098728202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154930435 (or 154930426 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 25098728202 in words is "twenty-five billion, ninety-eight million, seven hundred twenty-eight thousand, two hundred two".