155540059 has 2 divisors, whose sum is σ = 155540060. Its totient is φ = 155540058.

The previous prime is 155540039. The next prime is 155540069. The reversal of 155540059 is 950045551.

155540059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155540059 - 2¹⁷ = 155408987 is a prime.

It is not a weakly prime, because it can be changed into another prime (155540009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77770029 + 77770030.

It is an arithmetic number, because the mean of its divisors is an integer number (77770030).

Almost surely, 2^155540059 is an apocalyptic number.

155540059 is a deficient number, since it is larger than the sum of its proper divisors (1).

155540059 is an equidigital number, since it uses as much as digits as its factorization.

155540059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 155540059 is about 12471.5700294710. The cubic root of 155540059 is about 537.7916890913.

It can be divided in two parts, 1555 and 40059, that added together give a palindrome (41614).

The spelling of 155540059 in words is "one hundred fifty-five million, five hundred forty thousand, fifty-nine".