45090525 has 12 divisors (see below), whose sum is σ = 74549792. Its totient is φ = 24048240.

The previous prime is 45090517. The next prime is 45090559. The reversal of 45090525 is 52509054.

It is a happy number.

It is not a de Polignac number, because 45090525 - 2³ = 45090517 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45090492 and 45090501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300529 + ... + 300678.

Almost surely, 2^45090525 is an apocalyptic number.

It is an amenable number.

45090525 is a deficient number, since it is larger than the sum of its proper divisors (29459267).

45090525 is a wasteful number, since it uses less digits than its factorization.

45090525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601220 (or 601215 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 45090525 is about 6714.9478776830. The cubic root of 45090525 is about 355.9276801503.

Adding to 45090525 its reverse (52509054), we get a palindrome (97599579).

The spelling of 45090525 in words is "forty-five million, ninety thousand, five hundred twenty-five".