1634013025 has 6 divisors (see below), whose sum is σ = 2026176182. Its totient is φ = 1307210400.

The previous prime is 1634013023. The next prime is 1634013037. The reversal of 1634013025 is 5203104361.

It can be written as a sum of positive squares in 3 ways, for example, as 423042624 + 1210970401 = 20568^2 + 34799^2 .

It is not a de Polignac number, because 1634013025 - 2¹ = 1634013023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 65360521 = 1634013025 / (1 + 6 + 3 + 4 + 0 + 1 + 3 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1634013023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32680236 + ... + 32680285.

Almost surely, 2^1634013025 is an apocalyptic number.

It is an amenable number.

1634013025 is a deficient number, since it is larger than the sum of its proper divisors (392163157).

1634013025 is an equidigital number, since it uses as much as digits as its factorization.

1634013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65360531 (or 65360526 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1634013025 is about 40422.9269722023. The cubic root of 1634013025 is about 1177.8369415136.

Adding to 1634013025 its reverse (5203104361), we get a palindrome (6837117386).

The spelling of 1634013025 in words is "one billion, six hundred thirty-four million, thirteen thousand, twenty-five".