45020425 has 12 divisors (see below), whose sum is σ = 55939996. Its totient is φ = 35942400.

The previous prime is 45020413. The next prime is 45020429. The reversal of 45020425 is 52402054.

It can be written as a sum of positive squares in 6 ways, for example, as 1301881 + 43718544 = 1141^2 + 6612^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45020425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45020396 and 45020405.

It is not an unprimeable number, because it can be changed into a prime (45020429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12865 + ... + 15985.

Almost surely, 2^45020425 is an apocalyptic number.

It is an amenable number.

45020425 is a deficient number, since it is larger than the sum of its proper divisors (10919571).

45020425 is a wasteful number, since it uses less digits than its factorization.

45020425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 45020425 is about 6709.7261494043. The cubic root of 45020425 is about 355.7431367875.

Adding to 45020425 its reverse (52402054), we get a palindrome (97422479).

The spelling of 45020425 in words is "forty-five million, twenty thousand, four hundred twenty-five".