5215212242450 has 48 divisors (see below), whose sum is σ = 11086298479104. Its totient is φ = 1788032880000.

The previous prime is 5215212242413. The next prime is 5215212242453. The reversal of 5215212242450 is 542422125125.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 5215212242450.

It is not an unprimeable number, because it can be changed into a prime (5215212242453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18552950 + ... + 18831950.

It is an arithmetic number, because the mean of its divisors is an integer number (230964551648).

Almost surely, 2^{5215212242450} is an apocalyptic number.

5215212242450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5215212242450 is an abundant number, since it is smaller than the sum of its proper divisors (5871086236654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5215212242450 is a wasteful number, since it uses less digits than its factorization.

5215212242450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332427 (or 332422 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 5215212242450 its reverse (542422125125), we get a palindrome (5757634367575).

The spelling of 5215212242450 in words is "five trillion, two hundred fifteen billion, two hundred twelve million, two hundred forty-two thousand, four hundred fifty".