155007253 has 2 divisors, whose sum is σ = 155007254. Its totient is φ = 155007252.

The previous prime is 155007179. The next prime is 155007289. The reversal of 155007253 is 352700551.

155007253 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., 111999889 + 43007364 = 10583^2 + 6558^2 .

It is a cyclic number.

It is not a de Polignac number, because 155007253 - 2²¹ = 152910101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155007353) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77503626 + 77503627.

It is an arithmetic number, because the mean of its divisors is an integer number (77503627).

Almost surely, 2^155007253 is an apocalyptic number.

It is an amenable number.

155007253 is a deficient number, since it is larger than the sum of its proper divisors (1).

155007253 is an equidigital number, since it uses as much as digits as its factorization.

155007253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 155007253 is about 12450.1908820708. The cubic root of 155007253 is about 537.1769140377.

The spelling of 155007253 in words is "one hundred fifty-five million, seven thousand, two hundred fifty-three".