53252409 has 8 divisors (see below), whose sum is σ = 81146560. Its totient is φ = 30429936.

The previous prime is 53252401. The next prime is 53252413. The reversal of 53252409 is 90425235.

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

It is not a de Polignac number, because 53252409 - 2³ = 53252401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53252401) 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, 1267894 + ... + 1267935.

It is an arithmetic number, because the mean of its divisors is an integer number (10143320).

Almost surely, 2^53252409 is an apocalyptic number.

It is an amenable number.

53252409 is a deficient number, since it is larger than the sum of its proper divisors (27894151).

53252409 is a wasteful number, since it uses less digits than its factorization.

53252409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535839.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 53252409 is about 7297.4248197566. The cubic root of 53252409 is about 376.2239333972.

The spelling of 53252409 in words is "fifty-three million, two hundred fifty-two thousand, four hundred nine".