155225523 has 8 divisors (see below), whose sum is σ = 209293200. Its totient is φ = 102320768.

The previous prime is 155225513. The next prime is 155225531. The reversal of 155225523 is 325522551.

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 155225523 - 2⁴ = 155225507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155225503) 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, 290418 + ... + 290951.

It is an arithmetic number, because the mean of its divisors is an integer number (26161650).

Almost surely, 2^155225523 is an apocalyptic number.

155225523 is a deficient number, since it is larger than the sum of its proper divisors (54067677).

155225523 is an equidigital number, since it uses as much as digits as its factorization.

155225523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581461.

The product of its digits is 15000, while the sum is 30.

The square root of 155225523 is about 12458.9535274838. The cubic root of 155225523 is about 537.4289336726.

The spelling of 155225523 in words is "one hundred fifty-five million, two hundred twenty-five thousand, five hundred twenty-three".