53315345 has 4 divisors (see below), whose sum is σ = 63978420. Its totient is φ = 42652272.

The previous prime is 53315309. The next prime is 53315347. The reversal of 53315345 is 54351335.

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 36529936 + 16785409 = 6044^2 + 4097^2 .

It is a cyclic number.

It is not a de Polignac number, because 53315345 - 2¹⁶ = 53249809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53315347) 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, 5331530 + ... + 5331539.

It is an arithmetic number, because the mean of its divisors is an integer number (15994605).

Almost surely, 2^53315345 is an apocalyptic number.

It is an amenable number.

53315345 is a deficient number, since it is larger than the sum of its proper divisors (10663075).

53315345 is a wasteful number, since it uses less digits than its factorization.

53315345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663074.

The product of its digits is 13500, while the sum is 29.

The square root of 53315345 is about 7301.7357525454. The cubic root of 53315345 is about 376.3720876193.

The spelling of 53315345 in words is "fifty-three million, three hundred fifteen thousand, three hundred forty-five".