551434957 has 2 divisors, whose sum is σ = 551434958. Its totient is φ = 551434956.

The previous prime is 551434943. The next prime is 551434963. The reversal of 551434957 is 759434155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 533887236 + 17547721 = 23106^2 + 4189^2 .

It is a cyclic number.

It is not a de Polignac number, because 551434957 - 2¹¹ = 551432909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551434927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275717478 + 275717479.

It is an arithmetic number, because the mean of its divisors is an integer number (275717479).

Almost surely, 2^551434957 is an apocalyptic number.

It is an amenable number.

551434957 is a deficient number, since it is larger than the sum of its proper divisors (1).

551434957 is an equidigital number, since it uses as much as digits as its factorization.

551434957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 43.

The square root of 551434957 is about 23482.6522565063. The cubic root of 551434957 is about 820.0331916963.

The spelling of 551434957 in words is "five hundred fifty-one million, four hundred thirty-four thousand, nine hundred fifty-seven".