155453253 has 16 divisors (see below), whose sum is σ = 227033280. Its totient is φ = 94174976.

The previous prime is 155453209. The next prime is 155453261. The reversal of 155453253 is 352354551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155453253 - 2⁹ = 155452741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155453203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51075 + ... + 54032.

It is an arithmetic number, because the mean of its divisors is an integer number (14189580).

Almost surely, 2^155453253 is an apocalyptic number.

It is an amenable number.

155453253 is a deficient number, since it is larger than the sum of its proper divisors (71580027).

155453253 is a wasteful number, since it uses less digits than its factorization.

155453253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105156.

The product of its digits is 45000, while the sum is 33.

The square root of 155453253 is about 12468.0893885150. The cubic root of 155453253 is about 537.6916243385.

The spelling of 155453253 in words is "one hundred fifty-five million, four hundred fifty-three thousand, two hundred fifty-three".