2551040032 has 48 divisors (see below), whose sum is σ = 5268170880. Its totient is φ = 1213673472.

The previous prime is 2551040027. The next prime is 2551040039. The reversal of 2551040032 is 2300401552.

It is a super-2 number, since 2×2551040032² = 13015610489733122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2551039985 and 2551040012.

It is not an unprimeable number, because it can be changed into a prime (2551040039) 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, 133069 + ... + 151027.

It is an arithmetic number, because the mean of its divisors is an integer number (109753560).

Almost surely, 2^2551040032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551040032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2634085440).

2551040032 is an abundant number, since it is smaller than the sum of its proper divisors (2717130848).

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

2551040032 is a wasteful number, since it uses less digits than its factorization.

2551040032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18185 (or 18177 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2551040032 is about 50507.8214933093. The cubic root of 2551040032 is about 1366.3829199016.

Adding to 2551040032 its reverse (2300401552), we get a palindrome (4851441584).

The spelling of 2551040032 in words is "two billion, five hundred fifty-one million, forty thousand, thirty-two".