2551357 has 2 divisors, whose sum is σ = 2551358. Its totient is φ = 2551356.

The previous prime is 2551349. The next prime is 2551369. The reversal of 2551357 is 7531552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1425636 + 1125721 = 1194^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551357 - 2³ = 2551349 is a prime.

It is a Chen prime.

It is equal to p₁₈₆₅₄₄ and since 2551357 and 186544 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275678 + 1275679.

It is an arithmetic number, because the mean of its divisors is an integer number (1275679).

2^2551357 is an apocalyptic number.

It is an amenable number.

2551357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551357 is an equidigital number, since it uses as much as digits as its factorization.

2551357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5250, while the sum is 28.

The square root of 2551357 is about 1597.2967789362. The cubic root of 2551357 is about 136.6439508812.

The spelling of 2551357 in words is "two million, five hundred fifty-one thousand, three hundred fifty-seven".