53423445 has 32 divisors (see below), whose sum is σ = 87246720. Its totient is φ = 27910400.

The previous prime is 53423389. The next prime is 53423471. The reversal of 53423445 is 54432435.

It is not a de Polignac number, because 53423445 - 2⁷ = 53423317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271087 + ... + 271283.

It is an arithmetic number, because the mean of its divisors is an integer number (2726460).

Almost surely, 2^53423445 is an apocalyptic number.

It is an amenable number.

53423445 is a deficient number, since it is larger than the sum of its proper divisors (33823275).

53423445 is a wasteful number, since it uses less digits than its factorization.

53423445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 28800, while the sum is 30.

The square root of 53423445 is about 7309.1343536701. The cubic root of 53423445 is about 376.6262880811.

The spelling of 53423445 in words is "fifty-three million, four hundred twenty-three thousand, four hundred forty-five".