53523445 has 4 divisors (see below), whose sum is σ = 64228140. Its totient is φ = 42818752.

The previous prime is 53523427. The next prime is 53523451. The reversal of 53523445 is 54432535.

It is a happy number.

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 6765201 + 46758244 = 2601^2 + 6838^2 .

It is a cyclic number.

It is not a de Polignac number, because 53523445 - 2⁷ = 53523317 is a prime.

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, 5352340 + ... + 5352349.

It is an arithmetic number, because the mean of its divisors is an integer number (16057035).

Almost surely, 2^53523445 is an apocalyptic number.

It is an amenable number.

53523445 is a deficient number, since it is larger than the sum of its proper divisors (10704695).

53523445 is a wasteful number, since it uses less digits than its factorization.

53523445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704694.

The product of its digits is 36000, while the sum is 31.

The square root of 53523445 is about 7315.9719108263. The cubic root of 53523445 is about 376.8611359947.

The spelling of 53523445 in words is "fifty-three million, five hundred twenty-three thousand, four hundred forty-five".