53302861 has 4 divisors (see below), whose sum is σ = 53321724. Its totient is φ = 53284000.

The previous prime is 53302831. The next prime is 53302867. The reversal of 53302861 is 16820335.

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 36542025 + 16760836 = 6045^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 53302861 - 2¹³ = 53294669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53302867) 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, 4240 + ... + 11161.

It is an arithmetic number, because the mean of its divisors is an integer number (13330431).

Almost surely, 2^53302861 is an apocalyptic number.

It is an amenable number.

53302861 is a deficient number, since it is larger than the sum of its proper divisors (18863).

53302861 is a wasteful number, since it uses less digits than its factorization.

53302861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18862.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 53302861 is about 7300.8808372689. The cubic root of 53302861 is about 376.3427089859.

The spelling of 53302861 in words is "fifty-three million, three hundred two thousand, eight hundred sixty-one".