5215634064 has 100 divisors (see below), whose sum is σ = 15890136240. Its totient is φ = 1647034560.

The previous prime is 5215634063. The next prime is 5215634093. The reversal of 5215634064 is 4604365125.

5215634064 is a `hidden beast` number, since 5 + 2 + 15 + 634 + 0 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5215634063) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 81282 + ... + 130529.

Almost surely, 2^5215634064 is an apocalyptic number.

5215634064 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5215634064 is an abundant number, since it is smaller than the sum of its proper divisors (10674502176).

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

5215634064 is a wasteful number, since it uses less digits than its factorization.

5215634064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211850 (or 211835 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 5215634064 is about 72219.3468815663. The cubic root of 5215634064 is about 1734.2127347622.

Adding to 5215634064 its reverse (4604365125), we get a palindrome (9819999189).

It can be divided in two parts, 52 and 15634064, that added together give a square (15634116 = 3954²).

The spelling of 5215634064 in words is "five billion, two hundred fifteen million, six hundred thirty-four thousand, sixty-four".