155564429 has 8 divisors (see below), whose sum is σ = 158148480. Its totient is φ = 153000576.

The previous prime is 155564401. The next prime is 155564447. The reversal of 155564429 is 924465551.

155564429 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 155564429 - 2⁸ = 155564173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155564449) 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, 10892 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (19768560).

Almost surely, 2^155564429 is an apocalyptic number.

It is an amenable number.

155564429 is a deficient number, since it is larger than the sum of its proper divisors (2584051).

155564429 is an equidigital number, since it uses as much as digits as its factorization.

155564429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099.

The product of its digits is 216000, while the sum is 41.

The square root of 155564429 is about 12472.5470133409. The cubic root of 155564429 is about 537.8197746729.

The spelling of 155564429 in words is "one hundred fifty-five million, five hundred sixty-four thousand, four hundred twenty-nine".