5211545504 has 36 divisors (see below), whose sum is σ = 11277782082. Its totient is φ = 2368882560.

The previous prime is 5211545503. The next prime is 5211545557. The reversal of 5211545504 is 4055451125.

It can be written as a sum of positive squares in only one way, i.e., 4455295504 + 756250000 = 66748^2 + 27500^2 .

It is a super-2 number, since 2×5211545504² = 54320413080525228032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (5211545503) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 669107 + ... + 676850.

Almost surely, 2^5211545504 is an apocalyptic number.

It is an amenable number.

5211545504 is an abundant number, since it is smaller than the sum of its proper divisors (6066236578).

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

5211545504 is a wasteful number, since it uses less digits than its factorization.

5211545504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345989 (or 1345970 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 5211545504 is about 72191.0347896468. The cubic root of 5211545504 is about 1733.7594638029.

Adding to 5211545504 its reverse (4055451125), we get a palindrome (9266996629).

The spelling of 5211545504 in words is "five billion, two hundred eleven million, five hundred forty-five thousand, five hundred four".