53863129 has 4 divisors (see below), whose sum is σ = 54386176. Its totient is φ = 53340084.

The previous prime is 53863097. The next prime is 53863153. The reversal of 53863129 is 92136835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53863129 - 2⁵ = 53863097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53863169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261369 + ... + 261574.

It is an arithmetic number, because the mean of its divisors is an integer number (13596544).

Almost surely, 2^53863129 is an apocalyptic number.

It is an amenable number.

53863129 is a deficient number, since it is larger than the sum of its proper divisors (523047).

53863129 is a wasteful number, since it uses less digits than its factorization.

53863129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523046.

The product of its digits is 38880, while the sum is 37.

The square root of 53863129 is about 7339.1504276721. The cubic root of 53863129 is about 377.6566991227.

It can be divided in two parts, 5386 and 3129, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 53863129 in words is "fifty-three million, eight hundred sixty-three thousand, one hundred twenty-nine".