551912971 has 2 divisors, whose sum is σ = 551912972. Its totient is φ = 551912970.

The previous prime is 551912953. The next prime is 551912987. The reversal of 551912971 is 179219155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551912971 - 2⁷ = 551912843 is a prime.

It is not a weakly prime, because it can be changed into another prime (551912771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275956485 + 275956486.

It is an arithmetic number, because the mean of its divisors is an integer number (275956486).

Almost surely, 2^551912971 is an apocalyptic number.

551912971 is a deficient number, since it is larger than the sum of its proper divisors (1).

551912971 is an equidigital number, since it uses as much as digits as its factorization.

551912971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 40.

The square root of 551912971 is about 23492.8280758192. The cubic root of 551912971 is about 820.2700731455.

The spelling of 551912971 in words is "five hundred fifty-one million, nine hundred twelve thousand, nine hundred seventy-one".