5211200640 has 64 divisors (see below), whose sum is σ = 16610708160. Its totient is φ = 1389652992.

The previous prime is 5211200633. The next prime is 5211200651. The reversal of 5211200640 is 460021125.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×5211200640² = 54313224220672819200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355164 + ... + 1359003.

It is an arithmetic number, because the mean of its divisors is an integer number (259542315).

Almost surely, 2^5211200640 is an apocalyptic number.

It is an amenable number.

5211200640 is an abundant number, since it is smaller than the sum of its proper divisors (11399507520).

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

5211200640 is a wasteful number, since it uses less digits than its factorization.

5211200640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714189 (or 2714177 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 5211200640 is about 72188.6461986925. The cubic root of 5211200640 is about 1733.7212202267.

Adding to 5211200640 its reverse (460021125), we get a palindrome (5671221765).

The spelling of 5211200640 in words is "five billion, two hundred eleven million, two hundred thousand, six hundred forty".