2551150405 has 4 divisors (see below), whose sum is σ = 3061380492. Its totient is φ = 2040920320.

The previous prime is 2551150403. The next prime is 2551150411. The reversal of 2551150405 is 5040511552.

2551150405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1827648001 + 723502404 = 42751^2 + 26898^2 .

It is not a de Polignac number, because 2551150405 - 2¹ = 2551150403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551150403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255115036 + ... + 255115045.

It is an arithmetic number, because the mean of its divisors is an integer number (765345123).

Almost surely, 2^2551150405 is an apocalyptic number.

It is an amenable number.

2551150405 is a deficient number, since it is larger than the sum of its proper divisors (510230087).

2551150405 is an equidigital number, since it uses as much as digits as its factorization.

2551150405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510230086.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2551150405 is about 50508.9141142432. The cubic root of 2551150405 is about 1366.4026255387.

Adding to 2551150405 its reverse (5040511552), we get a palindrome (7591661957).

The spelling of 2551150405 in words is "two billion, five hundred fifty-one million, one hundred fifty thousand, four hundred five".