53551413 has 12 divisors (see below), whose sum is σ = 78412620. Its totient is φ = 35211456.

The previous prime is 53551403. The next prime is 53551417. The reversal of 53551413 is 31415535.

It can be written as a sum of positive squares in 2 ways, for example, as 37051569 + 16499844 = 6087^2 + 4062^2 .

It is not a de Polignac number, because 53551413 - 2⁶ = 53551349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551417) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40098 + ... + 41411.

It is an arithmetic number, because the mean of its divisors is an integer number (6534385).

Almost surely, 2^53551413 is an apocalyptic number.

It is an amenable number.

53551413 is a deficient number, since it is larger than the sum of its proper divisors (24861207).

53551413 is a wasteful number, since it uses less digits than its factorization.

53551413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81588 (or 81585 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 53551413 is about 7317.8830955407. The cubic root of 53551413 is about 376.9267659065.

Adding to 53551413 its reverse (31415535), we get a palindrome (84966948).

The spelling of 53551413 in words is "fifty-three million, five hundred fifty-one thousand, four hundred thirteen".