155445025 has 48 divisors (see below), whose sum is σ = 213093504. Its totient is φ = 112020480.

The previous prime is 155445013. The next prime is 155445041. The reversal of 155445025 is 520544551.

It is not a de Polignac number, because 155445025 - 2¹¹ = 155442977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1509124 + ... + 1509226.

It is an arithmetic number, because the mean of its divisors is an integer number (4439448).

Almost surely, 2^155445025 is an apocalyptic number.

It is an amenable number.

155445025 is a deficient number, since it is larger than the sum of its proper divisors (57648479).

155445025 is a wasteful number, since it uses less digits than its factorization.

155445025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 155445025 is about 12467.7594218047. The cubic root of 155445025 is about 537.6821376608.

Adding to 155445025 its reverse (520544551), we get a palindrome (675989576).

The spelling of 155445025 in words is "one hundred fifty-five million, four hundred forty-five thousand, twenty-five".