551634373 has 2 divisors, whose sum is σ = 551634374. Its totient is φ = 551634372.

The previous prime is 551634341. The next prime is 551634379. The reversal of 551634373 is 373436155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510443649 + 41190724 = 22593^2 + 6418^2 .

It is a cyclic number.

It is not a de Polignac number, because 551634373 - 2⁵ = 551634341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551634379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275817186 + 275817187.

It is an arithmetic number, because the mean of its divisors is an integer number (275817187).

Almost surely, 2^551634373 is an apocalyptic number.

It is an amenable number.

551634373 is a deficient number, since it is larger than the sum of its proper divisors (1).

551634373 is an equidigital number, since it uses as much as digits as its factorization.

551634373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 37.

The square root of 551634373 is about 23486.8979007446. The cubic root of 551634373 is about 820.1320296031.

It can be divided in two parts, 55163 and 4373, that added together give a square (59536 = 244²).

The spelling of 551634373 in words is "five hundred fifty-one million, six hundred thirty-four thousand, three hundred seventy-three".