155125425 has 144 divisors (see below), whose sum is σ = 341978112. Its totient is φ = 61286400.

The previous prime is 155125417. The next prime is 155125429. The reversal of 155125425 is 524521551.

155125425 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 155125425 - 2³ = 155125417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155125392 and 155125401.

It is not an unprimeable number, because it can be changed into a prime (155125429) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 812080 + ... + 812270.

It is an arithmetic number, because the mean of its divisors is an integer number (2374848).

Almost surely, 2^155125425 is an apocalyptic number.

155125425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155125425 is an abundant number, since it is smaller than the sum of its proper divisors (186852687).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155125425 is a wasteful number, since it uses less digits than its factorization.

155125425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 236 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 155125425 is about 12454.9357686019. The cubic root of 155125425 is about 537.3133875348.

Adding to 155125425 its reverse (524521551), we get a palindrome (679646976).

The spelling of 155125425 in words is "one hundred fifty-five million, one hundred twenty-five thousand, four hundred twenty-five".