252424123421 has 8 divisors (see below), whose sum is σ = 254554152960. Its totient is φ = 250296319728.

The previous prime is 252424123411. The next prime is 252424123423. The reversal of 252424123421 is 124321424252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252424123421 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 (252424123423) 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, 328301 + ... + 782706.

It is an arithmetic number, because the mean of its divisors is an integer number (31819269120).

Almost surely, 2^252424123421 is an apocalyptic number.

It is an amenable number.

252424123421 is a deficient number, since it is larger than the sum of its proper divisors (2130029539).

252424123421 is a wasteful number, since it uses less digits than its factorization.

252424123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112923.

The product of its digits is 30720, while the sum is 32.

Adding to 252424123421 its reverse (124321424252), we get a palindrome (376745547673).

The spelling of 252424123421 in words is "two hundred fifty-two billion, four hundred twenty-four million, one hundred twenty-three thousand, four hundred twenty-one".