53613511 has 16 divisors (see below), whose sum is σ = 63313920. Its totient is φ = 44447040.

The previous prime is 53613499. The next prime is 53613523. The reversal of 53613511 is 11531635.

53613511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53613499) and next prime (53613523).

It is a cyclic number.

It is not a de Polignac number, because 53613511 - 2¹¹ = 53611463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53613311) 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 15 ways as a sum of consecutive naturals, for example, 28366 + ... + 30196.

It is an arithmetic number, because the mean of its divisors is an integer number (3957120).

Almost surely, 2^53613511 is an apocalyptic number.

53613511 is a deficient number, since it is larger than the sum of its proper divisors (9700409).

53613511 is a wasteful number, since it uses less digits than its factorization.

53613511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its digits is 1350, while the sum is 25.

The square root of 53613511 is about 7322.1247599314. The cubic root of 53613511 is about 377.0724038738.

The spelling of 53613511 in words is "fifty-three million, six hundred thirteen thousand, five hundred eleven".