551000053 has 2 divisors, whose sum is σ = 551000054. Its totient is φ = 551000052.

The previous prime is 550999993. The next prime is 551000069. The reversal of 551000053 is 350000155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546764689 + 4235364 = 23383^2 + 2058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551000053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551000083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275500026 + 275500027.

It is an arithmetic number, because the mean of its divisors is an integer number (275500027).

Almost surely, 2^551000053 is an apocalyptic number.

It is an amenable number.

551000053 is a deficient number, since it is larger than the sum of its proper divisors (1).

551000053 is an equidigital number, since it uses as much as digits as its factorization.

551000053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 551000053 is about 23473.3903175489. The cubic root of 551000053 is about 819.8175545914.

The spelling of 551000053 in words is "five hundred fifty-one million, fifty-three", and thus it is an aban number.