155022433 has 2 divisors, whose sum is σ = 155022434. Its totient is φ = 155022432.

The previous prime is 155022419. The next prime is 155022437. The reversal of 155022433 is 334220551.

155022433 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 can be written as a sum of positive squares in only one way, i.e., 86992929 + 68029504 = 9327^2 + 8248^2 .

It is a cyclic number.

It is not a de Polignac number, because 155022433 - 2⁵ = 155022401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155022398 and 155022407.

It is not a weakly prime, because it can be changed into another prime (155022437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77511216 + 77511217.

It is an arithmetic number, because the mean of its divisors is an integer number (77511217).

Almost surely, 2^155022433 is an apocalyptic number.

It is an amenable number.

155022433 is a deficient number, since it is larger than the sum of its proper divisors (1).

155022433 is an equidigital number, since it uses as much as digits as its factorization.

155022433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 155022433 is about 12450.8004963536. The cubic root of 155022433 is about 537.1944488718.

Adding to 155022433 its reverse (334220551), we get a palindrome (489242984).

The spelling of 155022433 in words is "one hundred fifty-five million, twenty-two thousand, four hundred thirty-three".