5515040142 has 128 divisors (see below), whose sum is σ = 14009241600. Its totient is φ = 1597736448.

The previous prime is 5515040131. The next prime is 5515040173. The reversal of 5515040142 is 2410405155.

5515040142 is a `hidden beast` number, since 5 + 515 + 0 + 4 + 0 + 142 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 607803 + ... + 616809.

It is an arithmetic number, because the mean of its divisors is an integer number (109447200).

Almost surely, 2^5515040142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5515040142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7004620800).

5515040142 is an abundant number, since it is smaller than the sum of its proper divisors (8494201458).

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

5515040142 is a wasteful number, since it uses less digits than its factorization.

5515040142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9087 (or 9081 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 5515040142 is about 74263.3162604526. The cubic root of 5515040142 is about 1766.7817014371.

Adding to 5515040142 its reverse (2410405155), we get a palindrome (7925445297).

The spelling of 5515040142 in words is "five billion, five hundred fifteen million, forty thousand, one hundred forty-two".