5211631442 has 8 divisors (see below), whose sum is σ = 8008116732. Its totient is φ = 2542259200.

The previous prime is 5211631427. The next prime is 5211631471. The reversal of 5211631442 is 2441361125.

It can be written as a sum of positive squares in 2 ways, for example, as 4564488721 + 647142721 = 67561^2 + 25439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5211631442² = 54322204574485998728, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31778159 + ... + 31778322.

Almost surely, 2^5211631442 is an apocalyptic number.

5211631442 is a deficient number, since it is larger than the sum of its proper divisors (2796485290).

5211631442 is a wasteful number, since it uses less digits than its factorization.

5211631442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63556524.

The product of its digits is 5760, while the sum is 29.

The square root of 5211631442 is about 72191.6299996059. The cubic root of 5211631442 is about 1733.7689936056.

Adding to 5211631442 its reverse (2441361125), we get a palindrome (7652992567).

The spelling of 5211631442 in words is "five billion, two hundred eleven million, six hundred thirty-one thousand, four hundred forty-two".