155053580 has 48 divisors (see below), whose sum is σ = 370669824. Its totient is φ = 53929920.

The previous prime is 155053579. The next prime is 155053589. The reversal of 155053580 is 85350551.

It is a super-3 number, since 3×155053580³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (155053589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10262 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (7722288).

Almost surely, 2^155053580 is an apocalyptic number.

155053580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155053580 is an abundant number, since it is smaller than the sum of its proper divisors (215616244).

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

155053580 is a wasteful number, since it uses less digits than its factorization.

155053580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30686 (or 30684 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 155053580 is about 12452.0512366437. The cubic root of 155053580 is about 537.2304240416.

The spelling of 155053580 in words is "one hundred fifty-five million, fifty-three thousand, five hundred eighty".