2630557 has 2 divisors, whose sum is σ = 2630558. Its totient is φ = 2630556.

The previous prime is 2630539. The next prime is 2630587. The reversal of 2630557 is 7550362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2627641 + 2916 = 1621^2 + 54^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630557 - 2⁷ = 2630429 is a prime.

It is a Chen prime.

It is equal to p₁₉₁₉₂₆ and since 2630557 and 191926 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 (2630587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315278 + 1315279.

It is an arithmetic number, because the mean of its divisors is an integer number (1315279).

2^2630557 is an apocalyptic number.

It is an amenable number.

2630557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630557 is an equidigital number, since it uses as much as digits as its factorization.

2630557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2630557 is about 1621.8991953879. The cubic root of 2630557 is about 138.0434820621.

It can be divided in two parts, 26305 and 57, that added together give a palindrome (26362).

The spelling of 2630557 in words is "two million, six hundred thirty thousand, five hundred fifty-seven".