155106425 has 6 divisors (see below), whose sum is σ = 192331998. Its totient is φ = 124085120.

The previous prime is 155106421. The next prime is 155106431. The reversal of 155106425 is 524601551.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11202409 + 143904016 = 3347^2 + 11996^2 .

It is not a de Polignac number, because 155106425 - 2² = 155106421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155106421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3102104 + ... + 3102153.

It is an arithmetic number, because the mean of its divisors is an integer number (32055333).

Almost surely, 2^155106425 is an apocalyptic number.

It is an amenable number.

155106425 is a deficient number, since it is larger than the sum of its proper divisors (37225573).

155106425 is an equidigital number, since it uses as much as digits as its factorization.

155106425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204267 (or 6204262 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 155106425 is about 12454.1729954261. The cubic root of 155106425 is about 537.2914496499.

Adding to 155106425 its reverse (524601551), we get a palindrome (679707976).

The spelling of 155106425 in words is "one hundred fifty-five million, one hundred six thousand, four hundred twenty-five".