155466253 has 2 divisors, whose sum is σ = 155466254. Its totient is φ = 155466252.

The previous prime is 155466229. The next prime is 155466307. The reversal of 155466253 is 352664551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 69588964 = 9267^2 + 8342^2 .

It is an emirp because it is prime and its reverse (352664551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155466253 - 2⁹ = 155465741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155466203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77733126 + 77733127.

It is an arithmetic number, because the mean of its divisors is an integer number (77733127).

Almost surely, 2^155466253 is an apocalyptic number.

It is an amenable number.

155466253 is a deficient number, since it is larger than the sum of its proper divisors (1).

155466253 is an equidigital number, since it uses as much as digits as its factorization.

155466253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

The square root of 155466253 is about 12468.6107084952. The cubic root of 155466253 is about 537.7066123304.

The spelling of 155466253 in words is "one hundred fifty-five million, four hundred sixty-six thousand, two hundred fifty-three".