53240645 has 8 divisors (see below), whose sum is σ = 63945504. Its totient is φ = 42554704.

The previous prime is 53240639. The next prime is 53240647. The reversal of 53240645 is 54604235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53240645 - 2¹² = 53236549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53240647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462 + ... + 10608.

It is an arithmetic number, because the mean of its divisors is an integer number (7993188).

Almost surely, 2^53240645 is an apocalyptic number.

It is an amenable number.

53240645 is a deficient number, since it is larger than the sum of its proper divisors (10704859).

53240645 is a wasteful number, since it uses less digits than its factorization.

53240645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 53240645 is about 7296.6187374701. The cubic root of 53240645 is about 376.1962274562.

The spelling of 53240645 in words is "fifty-three million, two hundred forty thousand, six hundred forty-five".