155422425 has 24 divisors (see below), whose sum is σ = 262946464. Its totient is φ = 80962560.

The previous prime is 155422411. The next prime is 155422427. The reversal of 155422425 is 524224551.

155422425 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 155422425 - 2⁴ = 155422409 is a prime.

It is a super-2 number, since 2×155422425² = 48312260385761250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155422392 and 155422401.

It is not an unprimeable number, because it can be changed into a prime (155422427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20872 + ... + 27321.

Almost surely, 2^155422425 is an apocalyptic number.

155422425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155422425 is a deficient number, since it is larger than the sum of its proper divisors (107524039).

155422425 is a wasteful number, since it uses less digits than its factorization.

155422425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48249 (or 48244 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 155422425 is about 12466.8530511914. The cubic root of 155422425 is about 537.6560787046.

Adding to 155422425 its reverse (524224551), we get a palindrome (679646976).

The spelling of 155422425 in words is "one hundred fifty-five million, four hundred twenty-two thousand, four hundred twenty-five".