5111205040 has 80 divisors (see below), whose sum is σ = 12666421440. Its totient is φ = 1911398400.

The previous prime is 5111205037. The next prime is 5111205053. The reversal of 5111205040 is 405021115.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5111205040² = 52248833921842803200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5111204999 and 5111205017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192916 + ... + 217804.

It is an arithmetic number, because the mean of its divisors is an integer number (158330268).

Almost surely, 2^5111205040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5111205040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6333210720).

5111205040 is an abundant number, since it is smaller than the sum of its proper divisors (7555216400).

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

5111205040 is a wasteful number, since it uses less digits than its factorization.

5111205040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25070 (or 25064 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 5111205040 is about 71492.6922139599. The cubic root of 5111205040 is about 1722.5603027135.

Adding to 5111205040 its reverse (405021115), we get a palindrome (5516226155).

The spelling of 5111205040 in words is "five billion, one hundred eleven million, two hundred five thousand, forty".