53613285 has 48 divisors (see below), whose sum is σ = 95504640. Its totient is φ = 25660800.

The previous prime is 53613283. The next prime is 53613289. The reversal of 53613285 is 58231635.

It is not a de Polignac number, because 53613285 - 2¹ = 53613283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53613283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197700 + ... + 197970.

It is an arithmetic number, because the mean of its divisors is an integer number (1989680).

Almost surely, 2^53613285 is an apocalyptic number.

53613285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53613285 is a deficient number, since it is larger than the sum of its proper divisors (41891355).

53613285 is a wasteful number, since it uses less digits than its factorization.

53613285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 399 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 53613285 is about 7322.1093272362. The cubic root of 53613285 is about 377.0718740417.

It can be divided in two parts, 5361 and 3285, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 53613285 in words is "fifty-three million, six hundred thirteen thousand, two hundred eighty-five".