49985525 has 24 divisors (see below), whose sum is σ = 66011400. Its totient is φ = 37416960.

The previous prime is 49985521. The next prime is 49985527. The reversal of 49985525 is 52558994.

It can be written as a sum of positive squares in 12 ways, for example, as 7043716 + 42941809 = 2654^2 + 6553^2 .

It is not a de Polignac number, because 49985525 - 2² = 49985521 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49985525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49985521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143051 + ... + 143399.

It is an arithmetic number, because the mean of its divisors is an integer number (2750475).

Almost surely, 2^49985525 is an apocalyptic number.

It is an amenable number.

49985525 is a deficient number, since it is larger than the sum of its proper divisors (16025875).

49985525 is a wasteful number, since it uses less digits than its factorization.

49985525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 708 counting only the distinct ones).

The product of its digits is 648000, while the sum is 47.

The square root of 49985525 is about 7070.0442007105. The cubic root of 49985525 is about 368.3675955289.

The spelling of 49985525 in words is "forty-nine million, nine hundred eighty-five thousand, five hundred twenty-five".