53115890 has 8 divisors (see below), whose sum is σ = 95608620. Its totient is φ = 21246352.

The previous prime is 53115883. The next prime is 53115893. The reversal of 53115890 is 9851135.

It can be written as a sum of positive squares in 2 ways, for example, as 44049769 + 9066121 = 6637^2 + 3011^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53115893) 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, 2655785 + ... + 2655804.

Almost surely, 2^53115890 is an apocalyptic number.

53115890 is a deficient number, since it is larger than the sum of its proper divisors (42492730).

53115890 is a wasteful number, since it uses less digits than its factorization.

53115890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311596.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 53115890 is about 7288.0649009185. The cubic root of 53115890 is about 375.9021597322.

The spelling of 53115890 in words is "fifty-three million, one hundred fifteen thousand, eight hundred ninety".