5211538 has 4 divisors (see below), whose sum is σ = 7817310. Its totient is φ = 2605768.

The previous prime is 5211523. The next prime is 5211539. The reversal of 5211538 is 8351125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2879809 + 2331729 = 1697^2 + 1527^2 .

It is not an unprimeable number, because it can be changed into a prime (5211539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302883 + ... + 1302886.

Almost surely, 2^5211538 is an apocalyptic number.

5211538 is a deficient number, since it is larger than the sum of its proper divisors (2605772).

5211538 is a wasteful number, since it uses less digits than its factorization.

5211538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605771.

The product of its digits is 1200, while the sum is 25.

The square root of 5211538 is about 2282.8793222595. The cubic root of 5211538 is about 173.3758631667.

The spelling of 5211538 in words is "five million, two hundred eleven thousand, five hundred thirty-eight".