53130785 has 8 divisors (see below), whose sum is σ = 63959976. Its totient is φ = 42369280.

The previous prime is 53130773. The next prime is 53130809. The reversal of 53130785 is 58703135.

It can be written as a sum of positive squares in 4 ways, for example, as 234256 + 52896529 = 484^2 + 7273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53130785 - 2⁴ = 53130769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15176 + ... + 18345.

It is an arithmetic number, because the mean of its divisors is an integer number (7994997).

Almost surely, 2^53130785 is an apocalyptic number.

It is an amenable number.

53130785 is a deficient number, since it is larger than the sum of its proper divisors (10829191).

53130785 is a wasteful number, since it uses less digits than its factorization.

53130785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33843.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 53130785 is about 7289.0867054796. The cubic root of 53130785 is about 375.9372938473.

The spelling of 53130785 in words is "fifty-three million, one hundred thirty thousand, seven hundred eighty-five".