5211240421125 has 32 divisors (see below), whose sum is σ = 8673040471680. Its totient is φ = 2778835785600.

The previous prime is 5211240421099. The next prime is 5211240421133.

5211240421125 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5211240421125 - 2¹⁸ = 5211240158981 is a prime.

It is a super-3 number, since 3×5211240421125³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5211240421092 and 5211240421101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893106 + ... + 3349644.

It is an arithmetic number, because the mean of its divisors is an integer number (271032514740).

Almost surely, 2^{5211240421125} is an apocalyptic number.

It is an amenable number.

5211240421125 is a deficient number, since it is larger than the sum of its proper divisors (3461800050555).

5211240421125 is a wasteful number, since it uses less digits than its factorization.

5211240421125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462214 (or 2462204 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

It can be divided in two parts, 5211240 and 421125, that added together give a palindrome (5632365).

The spelling of 5211240421125 in words is "five trillion, two hundred eleven billion, two hundred forty million, four hundred twenty-one thousand, one hundred twenty-five".