555140087 has 2 divisors, whose sum is σ = 555140088. Its totient is φ = 555140086.

The previous prime is 555140059. The next prime is 555140093. The reversal of 555140087 is 780041555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555140087 - 2²⁰ = 554091511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555140017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277570043 + 277570044.

It is an arithmetic number, because the mean of its divisors is an integer number (277570044).

Almost surely, 2^555140087 is an apocalyptic number.

555140087 is a deficient number, since it is larger than the sum of its proper divisors (1).

555140087 is an equidigital number, since it uses as much as digits as its factorization.

555140087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 555140087 is about 23561.4109721808. The cubic root of 555140087 is about 821.8657136242.

The spelling of 555140087 in words is "five hundred fifty-five million, one hundred forty thousand, eighty-seven".