53418445 has 4 divisors (see below), whose sum is σ = 64102140. Its totient is φ = 42734752.

The previous prime is 53418389. The next prime is 53418451. The reversal of 53418445 is 54481435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54481435 = 5 ⋅10896287.

It can be written as a sum of positive squares in 2 ways, for example, as 37185604 + 16232841 = 6098^2 + 4029^2 .

It is a cyclic number.

It is not a de Polignac number, because 53418445 - 2⁷ = 53418317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53418445.

It is a congruent number.

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, 5341840 + ... + 5341849.

It is an arithmetic number, because the mean of its divisors is an integer number (16025535).

Almost surely, 2^53418445 is an apocalyptic number.

It is an amenable number.

53418445 is a deficient number, since it is larger than the sum of its proper divisors (10683695).

53418445 is a wasteful number, since it uses less digits than its factorization.

53418445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10683694.

The product of its digits is 38400, while the sum is 34.

The square root of 53418445 is about 7308.7923078988. The cubic root of 53418445 is about 376.6145379953.

The spelling of 53418445 in words is "fifty-three million, four hundred eighteen thousand, four hundred forty-five".