155525441 has 4 divisors (see below), whose sum is σ = 155550384. Its totient is φ = 155500500.

The previous prime is 155525437. The next prime is 155525449. The reversal of 155525441 is 144525551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 155525441 - 2² = 155525437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155525398 and 155525407.

It is not an unprimeable number, because it can be changed into a prime (155525449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206 + ... + 18696.

It is an arithmetic number, because the mean of its divisors is an integer number (38887596).

Almost surely, 2^155525441 is an apocalyptic number.

It is an amenable number.

155525441 is a deficient number, since it is larger than the sum of its proper divisors (24943).

155525441 is a wasteful number, since it uses less digits than its factorization.

155525441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24942.

The product of its digits is 20000, while the sum is 32.

The square root of 155525441 is about 12470.9839627834. The cubic root of 155525441 is about 537.7748409446.

The spelling of 155525441 in words is "one hundred fifty-five million, five hundred twenty-five thousand, four hundred forty-one".