5355251421 has 8 divisors (see below), whose sum is σ = 7689591840. Its totient is φ = 3295539312.

The previous prime is 5355251399. The next prime is 5355251431. The reversal of 5355251421 is 1241525535.

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

It is not a de Polignac number, because 5355251421 - 2¹⁵ = 5355218653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5355251431) 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, 68657031 + ... + 68657108.

It is an arithmetic number, because the mean of its divisors is an integer number (961198980).

Almost surely, 2^5355251421 is an apocalyptic number.

It is an amenable number.

5355251421 is a deficient number, since it is larger than the sum of its proper divisors (2334340419).

5355251421 is a wasteful number, since it uses less digits than its factorization.

5355251421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137314155.

The product of its digits is 30000, while the sum is 33.

The square root of 5355251421 is about 73179.5833617547. The cubic root of 5355251421 is about 1749.5510599148.

Adding to 5355251421 its reverse (1241525535), we get a palindrome (6596776956).

The spelling of 5355251421 in words is "five billion, three hundred fifty-five million, two hundred fifty-one thousand, four hundred twenty-one".