155007425 has 6 divisors (see below), whose sum is σ = 192209238. Its totient is φ = 124005920.

The previous prime is 155007421. The next prime is 155007439. The reversal of 155007425 is 524700551.

155007425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1024144 + 153983281 = 1012^2 + 12409^2 .

It is not a de Polignac number, because 155007425 - 2² = 155007421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155007421) 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, 3100124 + ... + 3100173.

It is an arithmetic number, because the mean of its divisors is an integer number (32034873).

Almost surely, 2^155007425 is an apocalyptic number.

It is an amenable number.

155007425 is a deficient number, since it is larger than the sum of its proper divisors (37201813).

155007425 is an equidigital number, since it uses as much as digits as its factorization.

155007425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200307 (or 6200302 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 155007425 is about 12450.1977895935. The cubic root of 155007425 is about 537.1771127261.

Adding to 155007425 its reverse (524700551), we get a palindrome (679707976).

The spelling of 155007425 in words is "one hundred fifty-five million, seven thousand, four hundred twenty-five".