259554551 has 2 divisors, whose sum is σ = 259554552. Its totient is φ = 259554550.

The previous prime is 259554523. The next prime is 259554557. The reversal of 259554551 is 155455952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259554551 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 259554499 and 259554508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259554557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129777275 + 129777276.

It is an arithmetic number, because the mean of its divisors is an integer number (129777276).

Almost surely, 2^259554551 is an apocalyptic number.

259554551 is a deficient number, since it is larger than the sum of its proper divisors (1).

259554551 is an equidigital number, since it uses as much as digits as its factorization.

259554551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225000, while the sum is 41.

The square root of 259554551 is about 16110.6967881591. The cubic root of 259554551 is about 637.8857240713.

The spelling of 259554551 in words is "two hundred fifty-nine million, five hundred fifty-four thousand, five hundred fifty-one".