2551321126 has 8 divisors (see below), whose sum is σ = 3842229384. Its totient is φ = 1270578000.

The previous prime is 2551321057. The next prime is 2551321169. The reversal of 2551321126 is 6211231552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2551321094 and 2551321103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2540655 + ... + 2541658.

It is an arithmetic number, because the mean of its divisors is an integer number (480278673).

Almost surely, 2^2551321126 is an apocalyptic number.

2551321126 is a deficient number, since it is larger than the sum of its proper divisors (1290908258).

2551321126 is a wasteful number, since it uses less digits than its factorization.

2551321126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082566.

The product of its digits is 3600, while the sum is 28.

The square root of 2551321126 is about 50510.6040945859. The cubic root of 2551321126 is about 1366.4331043923.

Adding to 2551321126 its reverse (6211231552), we get a palindrome (8762552678).

The spelling of 2551321126 in words is "two billion, five hundred fifty-one million, three hundred twenty-one thousand, one hundred twenty-six".