5072421231 has 32 divisors (see below), whose sum is σ = 7730331840. Its totient is φ = 3285273600.

The previous prime is 5072421229. The next prime is 5072421239. The reversal of 5072421231 is 1321242705.

5072421231 is a `hidden beast` number, since 5 + 0 + 7 + 2 + 421 + 231 = 666.

It is not a de Polignac number, because 5072421231 - 2¹ = 5072421229 is a prime.

It is a super-2 number, since 2×5072421231² = 51458914289399110722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 5072421195 and 5072421204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072421239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257281 + ... + 276293.

It is an arithmetic number, because the mean of its divisors is an integer number (241572870).

Almost surely, 2^5072421231 is an apocalyptic number.

5072421231 is a deficient number, since it is larger than the sum of its proper divisors (2657910609).

5072421231 is a wasteful number, since it uses less digits than its factorization.

5072421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19304 (or 19298 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 5072421231 is about 71220.9325339117. The cubic root of 5072421231 is about 1718.1923083787.

Adding to 5072421231 its reverse (1321242705), we get a palindrome (6393663936).

The spelling of 5072421231 in words is "five billion, seventy-two million, four hundred twenty-one thousand, two hundred thirty-one".