45072550 has 12 divisors (see below), whose sum is σ = 83835036. Its totient is φ = 18029000.

The previous prime is 45072523. The next prime is 45072553. The reversal of 45072550 is 5527054.

45072550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45072553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 450676 + ... + 450775.

It is an arithmetic number, because the mean of its divisors is an integer number (6986253).

Almost surely, 2^45072550 is an apocalyptic number.

45072550 is a deficient number, since it is larger than the sum of its proper divisors (38762486).

45072550 is a wasteful number, since it uses less digits than its factorization.

45072550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901463 (or 901458 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 45072550 is about 6713.6093124340. The cubic root of 45072550 is about 355.8803778964.

It can be divided in two parts, 450725 and 50, that added together give a triangular number (450775 = T₉₄₉).

The spelling of 45072550 in words is "forty-five million, seventy-two thousand, five hundred fifty".