155303325 has 60 divisors (see below), whose sum is σ = 289757248. Its totient is φ = 82231200.

The previous prime is 155303293. The next prime is 155303333. The reversal of 155303325 is 523303551.

It is not a de Polignac number, because 155303325 - 2⁵ = 155303293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 548634 + ... + 548916.

Almost surely, 2^155303325 is an apocalyptic number.

155303325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155303325 is a deficient number, since it is larger than the sum of its proper divisors (134453923).

155303325 is a wasteful number, since it uses less digits than its factorization.

155303325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 155303325 is about 12462.0754691985. The cubic root of 155303325 is about 537.5187085610.

Adding to 155303325 its reverse (523303551), we get a palindrome (678606876).

The spelling of 155303325 in words is "one hundred fifty-five million, three hundred three thousand, three hundred twenty-five".