155632253 has 8 divisors (see below), whose sum is σ = 179864640. Its totient is φ = 131899680.

The previous prime is 155632219. The next prime is 155632273. The reversal of 155632253 is 352236551.

155632253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155632253 - 2⁶ = 155632189 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 (155632273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124283 + ... + 125528.

It is an arithmetic number, because the mean of its divisors is an integer number (22483080).

Almost surely, 2^155632253 is an apocalyptic number.

It is an amenable number.

155632253 is a deficient number, since it is larger than the sum of its proper divisors (24232387).

155632253 is an equidigital number, since it uses as much as digits as its factorization.

155632253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249907.

The product of its digits is 27000, while the sum is 32.

The square root of 155632253 is about 12475.2656484742. The cubic root of 155632253 is about 537.8979240475.

The spelling of 155632253 in words is "one hundred fifty-five million, six hundred thirty-two thousand, two hundred fifty-three".