2558987623 has 2 divisors, whose sum is σ = 2558987624. Its totient is φ = 2558987622.

The previous prime is 2558987603. The next prime is 2558987657. The reversal of 2558987623 is 3267898552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2558987623 - 2⁵ = 2558987591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2558987603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279493811 + 1279493812.

It is an arithmetic number, because the mean of its divisors is an integer number (1279493812).

Almost surely, 2^2558987623 is an apocalyptic number.

2558987623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558987623 is an equidigital number, since it uses as much as digits as its factorization.

2558987623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 55.

The square root of 2558987623 is about 50586.4371447525. The cubic root of 2558987623 is about 1367.8004064489.

The spelling of 2558987623 in words is "two billion, five hundred fifty-eight million, nine hundred eighty-seven thousand, six hundred twenty-three".