155354015225 has 24 divisors (see below), whose sum is σ = 197441356992. Its totient is φ = 121194360000.

The previous prime is 155354015221. The next prime is 155354015227. The reversal of 155354015225 is 522510453551.

155354015225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155354015225 - 2² = 155354015221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155354015221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541100 + ... + 776850.

It is an arithmetic number, because the mean of its divisors is an integer number (8226723208).

Almost surely, 2^155354015225 is an apocalyptic number.

It is an amenable number.

155354015225 is a deficient number, since it is larger than the sum of its proper divisors (42087341767).

155354015225 is a wasteful number, since it uses less digits than its factorization.

155354015225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236417 (or 236412 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

Adding to 155354015225 its reverse (522510453551), we get a palindrome (677864468776).

The spelling of 155354015225 in words is "one hundred fifty-five billion, three hundred fifty-four million, fifteen thousand, two hundred twenty-five".