5257143421 has 8 divisors (see below), whose sum is σ = 5534510400. Its totient is φ = 4979844000.

The previous prime is 5257143413. The next prime is 5257143431. The reversal of 5257143421 is 1243417525.

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 5257143421 - 2³ = 5257143413 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 (5257143431) 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, 256296 + ... + 276046.

It is an arithmetic number, because the mean of its divisors is an integer number (691813800).

Almost surely, 2^5257143421 is an apocalyptic number.

It is an amenable number.

5257143421 is a deficient number, since it is larger than the sum of its proper divisors (277366979).

5257143421 is a wasteful number, since it uses less digits than its factorization.

5257143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33779.

The product of its digits is 33600, while the sum is 34.

The square root of 5257143421 is about 72506.1612623369. The cubic root of 5257143421 is about 1738.8012420702.

The spelling of 5257143421 in words is "five billion, two hundred fifty-seven million, one hundred forty-three thousand, four hundred twenty-one".