13945025 has 6 divisors (see below), whose sum is σ = 17291862. Its totient is φ = 11156000.

The previous prime is 13945013. The next prime is 13945033. The reversal of 13945025 is 52054931.

It can be written as a sum of positive squares in 3 ways, for example, as 3297856 + 10647169 = 1816^2 + 3263^2 .

It is not a de Polignac number, because 13945025 - 2⁸ = 13944769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278876 + ... + 278925.

It is an arithmetic number, because the mean of its divisors is an integer number (2881977).

Almost surely, 2^13945025 is an apocalyptic number.

It is an amenable number.

13945025 is a deficient number, since it is larger than the sum of its proper divisors (3346837).

13945025 is an equidigital number, since it uses as much as digits as its factorization.

13945025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557811 (or 557806 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 13945025 is about 3734.3038173132. The cubic root of 13945025 is about 240.6983421790.

Adding to 13945025 its reverse (52054931), we get a palindrome (65999956).

The spelling of 13945025 in words is "thirteen million, nine hundred forty-five thousand, twenty-five".