5213221542 has 24 divisors (see below), whose sum is σ = 11314911816. Its totient is φ = 1734725376.

The previous prime is 5213221537. The next prime is 5213221543. The reversal of 5213221542 is 2451223125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213221543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240588 + ... + 261359.

It is an arithmetic number, because the mean of its divisors is an integer number (471454659).

Almost surely, 2^5213221542 is an apocalyptic number.

5213221542 is an abundant number, since it is smaller than the sum of its proper divisors (6101690274).

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

5213221542 is a wasteful number, since it uses less digits than its factorization.

5213221542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502532 (or 502529 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 5213221542 is about 72202.6422092710. The cubic root of 5213221542 is about 1733.9453034474.

Adding to 5213221542 its reverse (2451223125), we get a palindrome (7664444667).

The spelling of 5213221542 in words is "five billion, two hundred thirteen million, two hundred twenty-one thousand, five hundred forty-two".