53115535 has 32 divisors (see below), whose sum is σ = 73193472. Its totient is φ = 36650880.

The previous prime is 53115527. The next prime is 53115547. The reversal of 53115535 is 53551135.

It is not a de Polignac number, because 53115535 - 2³ = 53115527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87202 + ... + 87808.

It is an arithmetic number, because the mean of its divisors is an integer number (2287296).

Almost surely, 2^53115535 is an apocalyptic number.

53115535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53115535 is a deficient number, since it is larger than the sum of its proper divisors (20077937).

53115535 is a wasteful number, since it uses less digits than its factorization.

53115535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its digits is 5625, while the sum is 28.

The square root of 53115535 is about 7288.0405459904. The cubic root of 53115535 is about 375.9013222831.

Subtracting 53115535 from its reverse (53551135), we obtain a square (435600 = 660²).

The spelling of 53115535 in words is "fifty-three million, one hundred fifteen thousand, five hundred thirty-five".