500000955551 has 2 divisors, whose sum is σ = 500000955552. Its totient is φ = 500000955550.

The previous prime is 500000955547. The next prime is 500000955581. The reversal of 500000955551 is 155559000005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500000955551 - 2² = 500000955547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500000955581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250000477775 + 250000477776.

It is an arithmetic number, because the mean of its divisors is an integer number (250000477776).

Almost surely, 2^500000955551 is an apocalyptic number.

500000955551 is a deficient number, since it is larger than the sum of its proper divisors (1).

500000955551 is an equidigital number, since it uses as much as digits as its factorization.

500000955551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 35.

Adding to 500000955551 its reverse (155559000005), we get a palindrome (655559955556).

The spelling of 500000955551 in words is "five hundred billion, nine hundred fifty-five thousand, five hundred fifty-one".