2551441517 has 2 divisors, whose sum is σ = 2551441518. Its totient is φ = 2551441516.

The previous prime is 2551441471. The next prime is 2551441553. The reversal of 2551441517 is 7151441552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2255395081 + 296046436 = 47491^2 + 17206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551441517 is a prime.

It is a super-2 number, since 2×2551441517² = 13019707629342522578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551441817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275720758 + 1275720759.

It is an arithmetic number, because the mean of its divisors is an integer number (1275720759).

Almost surely, 2^2551441517 is an apocalyptic number.

It is an amenable number.

2551441517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551441517 is an equidigital number, since it uses as much as digits as its factorization.

2551441517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 35.

The square root of 2551441517 is about 50511.7958203824. The cubic root of 2551441517 is about 1366.4545970037.

Adding to 2551441517 its sum of digits (35), we get a palindrome (2551441552).

The spelling of 2551441517 in words is "two billion, five hundred fifty-one million, four hundred forty-one thousand, five hundred seventeen".