5421355231 has 4 divisors (see below), whose sum is σ = 5657066352. Its totient is φ = 5185644112.

The previous prime is 5421355223. The next prime is 5421355249. The reversal of 5421355231 is 1325531245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5421355231 - 2³ = 5421355223 is a prime.

It is a super-2 number, since 2×5421355231² = 58782185081382126722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5421355193 and 5421355202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421355211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117855526 + ... + 117855571.

It is an arithmetic number, because the mean of its divisors is an integer number (1414266588).

Almost surely, 2^5421355231 is an apocalyptic number.

5421355231 is a deficient number, since it is larger than the sum of its proper divisors (235711121).

5421355231 is a wasteful number, since it uses less digits than its factorization.

5421355231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235711120.

The product of its digits is 18000, while the sum is 31.

The square root of 5421355231 is about 73629.8528519513. The cubic root of 5421355231 is about 1756.7203073963.

Adding to 5421355231 its reverse (1325531245), we get a palindrome (6746886476).

The spelling of 5421355231 in words is "five billion, four hundred twenty-one million, three hundred fifty-five thousand, two hundred thirty-one".