2551401445 has 8 divisors (see below), whose sum is σ = 3071341944. Its totient is φ = 2034681024.

The previous prime is 2551401407. The next prime is 2551401449. The reversal of 2551401445 is 5441041552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1454436 + 2549947009 = 1206^2 + 50497^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2551401445 - 2⁷ = 2551401317 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 (2551401449) 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, 803274 + ... + 806443.

It is an arithmetic number, because the mean of its divisors is an integer number (383917743).

Almost surely, 2^2551401445 is an apocalyptic number.

It is an amenable number.

2551401445 is a deficient number, since it is larger than the sum of its proper divisors (519940499).

2551401445 is a wasteful number, since it uses less digits than its factorization.

2551401445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610039.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 2551401445 is about 50511.3991590017. The cubic root of 2551401445 is about 1366.4474432888.

Adding to 2551401445 its reverse (5441041552), we get a palindrome (7992442997).

The spelling of 2551401445 in words is "two billion, five hundred fifty-one million, four hundred one thousand, four hundred forty-five".