52403609 has 16 divisors (see below), whose sum is σ = 56816640. Its totient is φ = 48216000.

The previous prime is 52403597. The next prime is 52403633. The reversal of 52403609 is 90630425.

It is a cyclic number.

It is not a de Polignac number, because 52403609 - 2⁸ = 52403353 is a prime.

It is a super-2 number, since 2×52403609² = 5492276472449762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52403669) 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, 63419 + ... + 64239.

It is an arithmetic number, because the mean of its divisors is an integer number (3551040).

Almost surely, 2^52403609 is an apocalyptic number.

It is an amenable number.

52403609 is a deficient number, since it is larger than the sum of its proper divisors (4413031).

52403609 is a wasteful number, since it uses less digits than its factorization.

52403609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 52403609 is about 7239.0337062346. The cubic root of 52403609 is about 374.2143170967.

The spelling of 52403609 in words is "fifty-two million, four hundred three thousand, six hundred nine".