53172535 has 16 divisors (see below), whose sum is σ = 68884704. Its totient is φ = 39169152.

The previous prime is 53172517. The next prime is 53172547. The reversal of 53172535 is 53527135.

It is a cyclic number.

It is not a de Polignac number, because 53172535 - 2⁵ = 53172503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53172497 and 53172506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35869 + ... + 37321.

It is an arithmetic number, because the mean of its divisors is an integer number (4305294).

Almost surely, 2^53172535 is an apocalyptic number.

53172535 is a deficient number, since it is larger than the sum of its proper divisors (15712169).

53172535 is a wasteful number, since it uses less digits than its factorization.

53172535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 15750, while the sum is 31.

The square root of 53172535 is about 7291.9500135423. The cubic root of 53172535 is about 376.0357381716.

The spelling of 53172535 in words is "fifty-three million, one hundred seventy-two thousand, five hundred thirty-five".