52404002431 has 8 divisors (see below), whose sum is σ = 57951126864. Its totient is φ = 46987398720.

The previous prime is 52404002389. The next prime is 52404002461. The reversal of 52404002431 is 13420040425.

It is a happy number.

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 52404002431 - 2⁷ = 52404002303 is a prime.

It is a super-2 number, since 2×52404002431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52404002396 and 52404002405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404002461) 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, 32629336 + ... + 32630941.

It is an arithmetic number, because the mean of its divisors is an integer number (7243890858).

Almost surely, 2^52404002431 is an apocalyptic number.

52404002431 is a deficient number, since it is larger than the sum of its proper divisors (5547124433).

52404002431 is a wasteful number, since it uses less digits than its factorization.

52404002431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65260361.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 52404002431 its reverse (13420040425), we get a palindrome (65824042856).

The spelling of 52404002431 in words is "fifty-two billion, four hundred four million, two thousand, four hundred thirty-one".