45250820 has 12 divisors (see below), whose sum is σ = 95026764. Its totient is φ = 18100320.

The previous prime is 45250819. The next prime is 45250831. The reversal of 45250820 is 2805254.

It can be written as a sum of positive squares in 2 ways, for example, as 17960644 + 27290176 = 4238^2 + 5224^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45250820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131251 + ... + 1131290.

It is an arithmetic number, because the mean of its divisors is an integer number (7918897).

Almost surely, 2^45250820 is an apocalyptic number.

It is an amenable number.

45250820 is an abundant number, since it is smaller than the sum of its proper divisors (49775944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45250820 is a wasteful number, since it uses less digits than its factorization.

45250820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262550 (or 2262548 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 45250820 is about 6726.8729733807. The cubic root of 45250820 is about 356.3489508655.

The spelling of 45250820 in words is "forty-five million, two hundred fifty thousand, eight hundred twenty".