98561463025 has 27 divisors (see below), whose sum is σ = 125682690819. Its totient is φ = 76672903680.

The previous prime is 98561463017. The next prime is 98561463053. The reversal of 98561463025 is 52036416589.

The square root of 98561463025 is 313945.

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

It can be written as a sum of positive squares in 13 ways, for example, as 1382129329 + 97179333696 = 37177^2 + 311736^2 .

It is not a de Polignac number, because 98561463025 - 2³ = 98561463017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98561463025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58078977 + ... + 58080673.

Almost surely, 2^98561463025 is an apocalyptic number.

98561463025 is the 313945-th square number.

98561463025 is the 156973-rd centered octagonal number.

It is an amenable number.

98561463025 is a deficient number, since it is larger than the sum of its proper divisors (27121227794).

98561463025 is an frugal number, since it uses more digits than its factorization.

98561463025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

Multiplying 98561463025 by its sum of digits (49), we get a square (4829511688225 = 2197615²).

The spelling of 98561463025 in words is "ninety-eight billion, five hundred sixty-one million, four hundred sixty-three thousand, twenty-five".