53142365 has 4 divisors (see below), whose sum is σ = 63770844. Its totient is φ = 42513888.

The previous prime is 53142361. The next prime is 53142371. The reversal of 53142365 is 56324135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 44368921 = 2962^2 + 6661^2 .

It is a cyclic number.

It is not a de Polignac number, because 53142365 - 2² = 53142361 is a prime.

It is a super-2 number, since 2×53142365² = 5648221915586450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53142361) 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, 5314232 + ... + 5314241.

It is an arithmetic number, because the mean of its divisors is an integer number (15942711).

Almost surely, 2^53142365 is an apocalyptic number.

It is an amenable number.

53142365 is a deficient number, since it is larger than the sum of its proper divisors (10628479).

53142365 is a wasteful number, since it uses less digits than its factorization.

53142365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10628478.

The product of its digits is 10800, while the sum is 29.

The square root of 53142365 is about 7289.8810004005. The cubic root of 53142365 is about 375.9646040507.

The spelling of 53142365 in words is "fifty-three million, one hundred forty-two thousand, three hundred sixty-five".