155053933 has 2 divisors, whose sum is σ = 155053934. Its totient is φ = 155053932.

The previous prime is 155053903. The next prime is 155053961. The reversal of 155053933 is 339350551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149279524 + 5774409 = 12218^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 155053933 - 2¹³ = 155045741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155053903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77526966 + 77526967.

It is an arithmetic number, because the mean of its divisors is an integer number (77526967).

Almost surely, 2^155053933 is an apocalyptic number.

It is an amenable number.

155053933 is a deficient number, since it is larger than the sum of its proper divisors (1).

155053933 is an equidigital number, since it uses as much as digits as its factorization.

155053933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30375, while the sum is 34.

The square root of 155053933 is about 12452.0654110071. The cubic root of 155053933 is about 537.2308317333.

The spelling of 155053933 in words is "one hundred fifty-five million, fifty-three thousand, nine hundred thirty-three".