45204525 has 18 divisors (see below), whose sum is σ = 80966730. Its totient is φ = 24108960.

The previous prime is 45204503. The next prime is 45204527. The reversal of 45204525 is 52540254.

It can be written as a sum of positive squares in 3 ways, for example, as 86436 + 45118089 = 294^2 + 6717^2 .

It is not a de Polignac number, because 45204525 - 2²⁰ = 44155949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45204527) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 100230 + ... + 100679.

Almost surely, 2^45204525 is an apocalyptic number.

45204525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45204525 is a deficient number, since it is larger than the sum of its proper divisors (35762205).

45204525 is a wasteful number, since it uses less digits than its factorization.

45204525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200925 (or 200917 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 45204525 is about 6723.4310437454. The cubic root of 45204525 is about 356.2273854527.

Adding to 45204525 its reverse (52540254), we get a palindrome (97744779).

It can be divided in two parts, 4520 and 4525, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 45204525 in words is "forty-five million, two hundred four thousand, five hundred twenty-five".