52303145 has 4 divisors (see below), whose sum is σ = 62763780. Its totient is φ = 41842512.

The previous prime is 52303133. The next prime is 52303159. The reversal of 52303145 is 54130325.

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 38142976 + 14160169 = 6176^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 52303145 - 2⁸ = 52302889 is a prime.

It is a super-4 number, since 4×52303145⁴ (a number of 32 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52303145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5230310 + ... + 5230319.

It is an arithmetic number, because the mean of its divisors is an integer number (15690945).

Almost surely, 2^52303145 is an apocalyptic number.

It is an amenable number.

52303145 is a deficient number, since it is larger than the sum of its proper divisors (10460635).

52303145 is a wasteful number, since it uses less digits than its factorization.

52303145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460634.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 52303145 is about 7232.0913296224. The cubic root of 52303145 is about 373.9750262143.

The spelling of 52303145 in words is "fifty-two million, three hundred three thousand, one hundred forty-five".