155425563 has 12 divisors (see below), whose sum is σ = 224970928. Its totient is φ = 103401360.

The previous prime is 155425561. The next prime is 155425573. The reversal of 155425563 is 365524551.

155425563 is a `hidden beast` number, since 1 + 5 + 542 + 55 + 63 = 666.

155425563 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 155425563 - 2¹ = 155425561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155425561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13348 + ... + 22113.

Almost surely, 2^155425563 is an apocalyptic number.

155425563 is a deficient number, since it is larger than the sum of its proper divisors (69545365).

155425563 is a wasteful number, since it uses less digits than its factorization.

155425563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35954 (or 35951 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 155425563 is about 12466.9789042895. The cubic root of 155425563 is about 537.6596971302.

The spelling of 155425563 in words is "one hundred fifty-five million, four hundred twenty-five thousand, five hundred sixty-three".