2551421110 has 32 divisors (see below), whose sum is σ = 5289984000. Its totient is φ = 867881952.

The previous prime is 2551421101. The next prime is 2551421129. The reversal of 2551421110 is 111241552.

It is a congruent number.

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, 134610 + ... + 152389.

It is an arithmetic number, because the mean of its divisors is an integer number (165312000).

Almost surely, 2^2551421110 is an apocalyptic number.

2551421110 is an abundant number, since it is smaller than the sum of its proper divisors (2738562890).

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

2551421110 is a wasteful number, since it uses less digits than its factorization.

2551421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287140.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 2551421110 is about 50511.5938176573. The cubic root of 2551421110 is about 1366.4509539241.

Adding to 2551421110 its reverse (111241552), we get a palindrome (2662662662).

The spelling of 2551421110 in words is "two billion, five hundred fifty-one million, four hundred twenty-one thousand, one hundred ten".