155230554 has 8 divisors (see below), whose sum is σ = 310461120. Its totient is φ = 51743516.

The previous prime is 155230549. The next prime is 155230583. The reversal of 155230554 is 455032551.

It is a happy number.

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

155230554 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12935874 + ... + 12935885.

It is an arithmetic number, because the mean of its divisors is an integer number (38807640).

Almost surely, 2^155230554 is an apocalyptic number.

155230554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155230554 is a wasteful number, since it uses less digits than its factorization.

155230554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25871764.

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

The square root of 155230554 is about 12459.1554288403. The cubic root of 155230554 is about 537.4347397963.

The spelling of 155230554 in words is "one hundred fifty-five million, two hundred thirty thousand, five hundred fifty-four".