5210621564 has 12 divisors (see below), whose sum is σ = 9147355224. Its totient is φ = 2597091504.

The previous prime is 5210621561. The next prime is 5210621573. The reversal of 5210621564 is 4651260125.

It is a self number, because there is not a number n which added to its sum of digits gives 5210621564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5210621561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053394 + ... + 2055929.

It is an arithmetic number, because the mean of its divisors is an integer number (762279602).

Almost surely, 2^5210621564 is an apocalyptic number.

It is an amenable number.

5210621564 is a deficient number, since it is larger than the sum of its proper divisors (3936733660).

5210621564 is a wasteful number, since it uses less digits than its factorization.

5210621564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109644 (or 4109642 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 5210621564 is about 72184.6352349307. The cubic root of 5210621564 is about 1733.6569999949.

Adding to 5210621564 its reverse (4651260125), we get a palindrome (9861881689).

The spelling of 5210621564 in words is "five billion, two hundred ten million, six hundred twenty-one thousand, five hundred sixty-four".