53356445 has 4 divisors (see below), whose sum is σ = 64027740. Its totient is φ = 42685152.

The previous prime is 53356441. The next prime is 53356483. The reversal of 53356445 is 54465335.

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 25867396 + 27489049 = 5086^2 + 5243^2 .

It is a cyclic number.

It is not a de Polignac number, because 53356445 - 2² = 53356441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53356441) 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, 5335640 + ... + 5335649.

It is an arithmetic number, because the mean of its divisors is an integer number (16006935).

Almost surely, 2^53356445 is an apocalyptic number.

It is an amenable number.

53356445 is a deficient number, since it is larger than the sum of its proper divisors (10671295).

53356445 is a wasteful number, since it uses less digits than its factorization.

53356445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671294.

The product of its digits is 108000, while the sum is 35.

The square root of 53356445 is about 7304.5496096611. The cubic root of 53356445 is about 376.4687759779.

The spelling of 53356445 in words is "fifty-three million, three hundred fifty-six thousand, four hundred forty-five".