551436057989 has 2 divisors, whose sum is σ = 551436057990. Its totient is φ = 551436057988.

The previous prime is 551436057973. The next prime is 551436058003. The reversal of 551436057989 is 989750634155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490478916964 + 60957141025 = 700342^2 + 246895^2 .

It is a cyclic number.

It is not a de Polignac number, because 551436057989 - 2⁴ = 551436057973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551436057889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275718028994 + 275718028995.

It is an arithmetic number, because the mean of its divisors is an integer number (275718028995).

Almost surely, 2^551436057989 is an apocalyptic number.

It is an amenable number.

551436057989 is a deficient number, since it is larger than the sum of its proper divisors (1).

551436057989 is an equidigital number, since it uses as much as digits as its factorization.

551436057989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824000, while the sum is 62.

The spelling of 551436057989 in words is "five hundred fifty-one billion, four hundred thirty-six million, fifty-seven thousand, nine hundred eighty-nine".