155632425 has 24 divisors (see below), whose sum is σ = 277107264. Its totient is φ = 76618560.

The previous prime is 155632417. The next prime is 155632427. The reversal of 155632425 is 524236551.

It is not a de Polignac number, because 155632425 - 2³ = 155632417 is a prime.

It is a super-2 number, since 2×155632425² = 48442903422761250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155632427) 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, 78837 + ... + 80786.

It is an arithmetic number, because the mean of its divisors is an integer number (11546136).

Almost surely, 2^155632425 is an apocalyptic number.

155632425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155632425 is a deficient number, since it is larger than the sum of its proper divisors (121474839).

155632425 is a wasteful number, since it uses less digits than its factorization.

155632425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159649 (or 159644 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 155632425 is about 12475.2725421131. The cubic root of 155632425 is about 537.8981222035.

Adding to 155632425 its reverse (524236551), we get a palindrome (679868976).

The spelling of 155632425 in words is "one hundred fifty-five million, six hundred thirty-two thousand, four hundred twenty-five".