551545597 has 2 divisors, whose sum is σ = 551545598. Its totient is φ = 551545596.

The previous prime is 551545529. The next prime is 551545601. The reversal of 551545597 is 795545155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455779801 + 95765796 = 21349^2 + 9786^2 .

It is a cyclic number.

It is not a de Polignac number, because 551545597 - 2²³ = 543156989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551540597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275772798 + 275772799.

It is an arithmetic number, because the mean of its divisors is an integer number (275772799).

Almost surely, 2^551545597 is an apocalyptic number.

It is an amenable number.

551545597 is a deficient number, since it is larger than the sum of its proper divisors (1).

551545597 is an equidigital number, since it uses as much as digits as its factorization.

551545597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787500, while the sum is 46.

The square root of 551545597 is about 23485.0079199476. The cubic root of 551545597 is about 820.0880318934.

The spelling of 551545597 in words is "five hundred fifty-one million, five hundred forty-five thousand, five hundred ninety-seven".