5511534440 has 32 divisors (see below), whose sum is σ = 13053636000. Its totient is φ = 2088581184.

The previous prime is 5511534439. The next prime is 5511534451. The reversal of 5511534440 is 444351155.

It is a super-2 number, since 2×5511534440² = 60754023766612227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5511534397 and 5511534406.

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, 3625250 + ... + 3626769.

It is an arithmetic number, because the mean of its divisors is an integer number (407926125).

Almost surely, 2^5511534440 is an apocalyptic number.

It is an amenable number.

5511534440 is an abundant number, since it is smaller than the sum of its proper divisors (7542101560).

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

5511534440 is a wasteful number, since it uses less digits than its factorization.

5511534440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252049 (or 7252045 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 5511534440 is about 74239.7093205516. The cubic root of 5511534440 is about 1766.4072633648.

Adding to 5511534440 its reverse (444351155), we get a palindrome (5955885595).

The spelling of 5511534440 in words is "five billion, five hundred eleven million, five hundred thirty-four thousand, four hundred forty".