155043253 has 16 divisors (see below), whose sum is σ = 164900736. Its totient is φ = 145474560.

The previous prime is 155043227. The next prime is 155043257. The reversal of 155043253 is 352340551.

It is a cyclic number.

It is not a de Polignac number, because 155043253 - 2²⁵ = 121488821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155043257) 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, 459901 + ... + 460237.

It is an arithmetic number, because the mean of its divisors is an integer number (10306296).

Almost surely, 2^155043253 is an apocalyptic number.

It is an amenable number.

155043253 is a deficient number, since it is larger than the sum of its proper divisors (9857483).

155043253 is a wasteful number, since it uses less digits than its factorization.

155043253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 155043253 is about 12451.6365591034. The cubic root of 155043253 is about 537.2184967629.

The spelling of 155043253 in words is "one hundred fifty-five million, forty-three thousand, two hundred fifty-three".