5121534440 has 32 divisors (see below), whose sum is σ = 12571040160. Its totient is φ = 1862376000.

The previous prime is 5121534437. The next prime is 5121534443. The reversal of 5121534440 is 444351215.

It is an interprime number because it is at equal distance from previous prime (5121534437) and next prime (5121534443).

It is a super-2 number, since 2×5121534440² = 52460230040212227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5121534443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5819486 + ... + 5820365.

It is an arithmetic number, because the mean of its divisors is an integer number (392845005).

Almost surely, 2^5121534440 is an apocalyptic number.

It is an amenable number.

5121534440 is an abundant number, since it is smaller than the sum of its proper divisors (7449505720).

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

5121534440 is a wasteful number, since it uses less digits than its factorization.

5121534440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639873 (or 11639869 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 5121534440 is about 71564.8967022241. The cubic root of 5121534440 is about 1723.7199145553.

Adding to 5121534440 its reverse (444351215), we get a palindrome (5565885655).

The spelling of 5121534440 in words is "five billion, one hundred twenty-one million, five hundred thirty-four thousand, four hundred forty".