52320135 has 32 divisors (see below), whose sum is σ = 101302272. Its totient is φ = 22510080.

The previous prime is 52320083. The next prime is 52320137. The reversal of 52320135 is 53102325.

Added to its reverse (53102325) it gives a triangular number (105422460 = T₁₄₅₂₀).

It is not a de Polignac number, because 52320135 - 2⁷ = 52320007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52320137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12871 + ... + 16440.

It is an arithmetic number, because the mean of its divisors is an integer number (3165696).

Almost surely, 2^52320135 is an apocalyptic number.

52320135 is a deficient number, since it is larger than the sum of its proper divisors (48982137).

52320135 is a wasteful number, since it uses less digits than its factorization.

52320135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29343.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 52320135 is about 7233.2658599004. The cubic root of 52320135 is about 374.0155154801.

Adding to 52320135 its reverse (53102325), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 52320135 in words is "fifty-two million, three hundred twenty thousand, one hundred thirty-five".