52553409 has 16 divisors (see below), whose sum is σ = 74364480. Its totient is φ = 32898560.

The previous prime is 52553399. The next prime is 52553429. The reversal of 52553409 is 90435525.

It is a cyclic number.

It is not a de Polignac number, because 52553409 - 2⁹ = 52552897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52553409.

It is not an unprimeable number, because it can be changed into a prime (52553429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28114 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (4647780).

Almost surely, 2^52553409 is an apocalyptic number.

It is an amenable number.

52553409 is a deficient number, since it is larger than the sum of its proper divisors (21811071).

52553409 is a wasteful number, since it uses less digits than its factorization.

52553409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 52553409 is about 7249.3730073711. The cubic root of 52553409 is about 374.5705519416.

The spelling of 52553409 in words is "fifty-two million, five hundred fifty-three thousand, four hundred nine".