55134559 has 2 divisors, whose sum is σ = 55134560. Its totient is φ = 55134558.

The previous prime is 55134533. The next prime is 55134571. The reversal of 55134559 is 95543155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55134559 - 2¹³ = 55126367 is a prime.

It is a super-2 number, since 2×55134559² = 6079639192248962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55134529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27567279 + 27567280.

It is an arithmetic number, because the mean of its divisors is an integer number (27567280).

Almost surely, 2^55134559 is an apocalyptic number.

55134559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55134559 is an equidigital number, since it uses as much as digits as its factorization.

55134559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 37.

The square root of 55134559 is about 7425.2649110991. The cubic root of 55134559 is about 380.6051277325.

The spelling of 55134559 in words is "fifty-five million, one hundred thirty-four thousand, five hundred fifty-nine".