155452025443 has 24 divisors (see below), whose sum is σ = 184937564000. Its totient is φ = 129793466880.

The previous prime is 155452025387. The next prime is 155452025461. The reversal of 155452025443 is 344520254551.

It is not a de Polignac number, because 155452025443 - 2²⁵ = 155418471011 is a prime.

It is a super-2 number, since 2×155452025443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155452025396 and 155452025405.

It is not an unprimeable number, because it can be changed into a prime (155452025143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64723 + ... + 561331.

Almost surely, 2^155452025443 is an apocalyptic number.

155452025443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155452025443 is a deficient number, since it is larger than the sum of its proper divisors (29485538557).

155452025443 is a wasteful number, since it uses less digits than its factorization.

155452025443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496843 (or 496832 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 155452025443 its reverse (344520254551), we get a palindrome (499972279994).

The spelling of 155452025443 in words is "one hundred fifty-five billion, four hundred fifty-two million, twenty-five thousand, four hundred forty-three".