155230325 has 6 divisors (see below), whose sum is σ = 192485634. Its totient is φ = 124184240.

The previous prime is 155230321. The next prime is 155230343. The reversal of 155230325 is 523032551.

It can be written as a sum of positive squares in 3 ways, for example, as 28561 + 155201764 = 169^2 + 12458^2 .

It is not a de Polignac number, because 155230325 - 2² = 155230321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155230294 and 155230303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155230321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3104582 + ... + 3104631.

It is an arithmetic number, because the mean of its divisors is an integer number (32080939).

Almost surely, 2^155230325 is an apocalyptic number.

It is an amenable number.

155230325 is a deficient number, since it is larger than the sum of its proper divisors (37255309).

155230325 is an equidigital number, since it uses as much as digits as its factorization.

155230325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209223 (or 6209218 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 155230325 is about 12459.1462388079. The cubic root of 155230325 is about 537.4344755171.

Adding to 155230325 its reverse (523032551), we get a palindrome (678262876).

The spelling of 155230325 in words is "one hundred fifty-five million, two hundred thirty thousand, three hundred twenty-five".