5211525544 has 8 divisors (see below), whose sum is σ = 9771610410. Its totient is φ = 2605762768.

The previous prime is 5211525511. The next prime is 5211525589. The reversal of 5211525544 is 4455251125.

It can be written as a sum of positive squares in only one way, i.e., 3808124100 + 1403401444 = 61710^2 + 37462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325720339 + ... + 325720354.

Almost surely, 2^5211525544 is an apocalyptic number.

It is an amenable number.

5211525544 is a deficient number, since it is larger than the sum of its proper divisors (4560084866).

5211525544 is a wasteful number, since it uses less digits than its factorization.

5211525544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651440699 (or 651440695 counting only the distinct ones).

The product of its digits is 40000, while the sum is 34.

The square root of 5211525544 is about 72190.8965452016. The cubic root of 5211525544 is about 1733.7572503915.

Adding to 5211525544 its reverse (4455251125), we get a palindrome (9666776669).

The spelling of 5211525544 in words is "five billion, two hundred eleven million, five hundred twenty-five thousand, five hundred forty-four".