2551110042 has 32 divisors (see below), whose sum is σ = 5500660032. Its totient is φ = 784105344.

The previous prime is 2551109999. The next prime is 2551110047. The reversal of 2551110042 is 2400111552.

It is not an unprimeable number, because it can be changed into a prime (2551110047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56598 + ... + 91134.

It is an arithmetic number, because the mean of its divisors is an integer number (171895626).

Almost surely, 2^2551110042 is an apocalyptic number.

2551110042 is an abundant number, since it is smaller than the sum of its proper divisors (2949549990).

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

2551110042 is a wasteful number, since it uses less digits than its factorization.

2551110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35502.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2551110042 is about 50508.5145495292. The cubic root of 2551110042 is about 1366.3954193256.

Adding to 2551110042 its reverse (2400111552), we get a palindrome (4951221594).

It can be divided in two parts, 25511 and 10042, that added together give a palindrome (35553).

The spelling of 2551110042 in words is "two billion, five hundred fifty-one million, one hundred ten thousand, forty-two".