53453499 has 16 divisors (see below), whose sum is σ = 78556800. Its totient is φ = 32060160.

The previous prime is 53453497. The next prime is 53453509. The reversal of 53453499 is 99435435.

It is a happy number.

It is not a de Polignac number, because 53453499 - 2¹ = 53453497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53453499.

It is not an unprimeable number, because it can be changed into a prime (53453497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5149 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (4909800).

Almost surely, 2^53453499 is an apocalyptic number.

53453499 is a deficient number, since it is larger than the sum of its proper divisors (25103301).

53453499 is a wasteful number, since it uses less digits than its factorization.

53453499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16810.

The product of its digits is 291600, while the sum is 42.

The square root of 53453499 is about 7311.1899852213. The cubic root of 53453499 is about 376.6969000541.

The spelling of 53453499 in words is "fifty-three million, four hundred fifty-three thousand, four hundred ninety-nine".