52351421 has 8 divisors (see below), whose sum is σ = 52879584. Its totient is φ = 51826320.

The previous prime is 52351417. The next prime is 52351423. The reversal of 52351421 is 12415325.

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 52351421 - 2² = 52351417 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 (52351423) 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, 47351 + ... + 48443.

It is an arithmetic number, because the mean of its divisors is an integer number (6609948).

Almost surely, 2^52351421 is an apocalyptic number.

It is an amenable number.

52351421 is a deficient number, since it is larger than the sum of its proper divisors (528163).

52351421 is a wasteful number, since it uses less digits than its factorization.

52351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its digits is 1200, while the sum is 23.

The square root of 52351421 is about 7235.4281835977. The cubic root of 52351421 is about 374.0900509517.

Adding to 52351421 its reverse (12415325), we get a palindrome (64766746).

The spelling of 52351421 in words is "fifty-two million, three hundred fifty-one thousand, four hundred twenty-one".