155505023 has 8 divisors (see below), whose sum is σ = 157032960. Its totient is φ = 153982080.

The previous prime is 155505011. The next prime is 155505037. The reversal of 155505023 is 320505551.

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 155505023 - 2¹⁴ = 155488639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155504983 and 155505001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155504023) 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, 95843 + ... + 97451.

It is an arithmetic number, because the mean of its divisors is an integer number (19629120).

Almost surely, 2^155505023 is an apocalyptic number.

155505023 is a deficient number, since it is larger than the sum of its proper divisors (1527937).

155505023 is a wasteful number, since it uses less digits than its factorization.

155505023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 155505023 is about 12470.1653156644. The cubic root of 155505023 is about 537.7513061729.

The spelling of 155505023 in words is "one hundred fifty-five million, five hundred five thousand, twenty-three".