83725550 has 48 divisors (see below), whose sum is σ = 160479312. Its totient is φ = 32486400.

The previous prime is 83725549. The next prime is 83725559. The reversal of 83725550 is 5552738.

It is a self number, because there is not a number n which added to its sum of digits gives 83725550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83725559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295709 + ... + 295991.

It is an arithmetic number, because the mean of its divisors is an integer number (3343319).

Almost surely, 2^83725550 is an apocalyptic number.

83725550 is a deficient number, since it is larger than the sum of its proper divisors (76753762).

83725550 is a wasteful number, since it uses less digits than its factorization.

83725550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 83725550 is about 9150.1666651488. The cubic root of 83725550 is about 437.4744257160.

The spelling of 83725550 in words is "eighty-three million, seven hundred twenty-five thousand, five hundred fifty".