155622563 has 8 divisors (see below), whose sum is σ = 157272576. Its totient is φ = 153981000.

The previous prime is 155622553. The next prime is 155622581. The reversal of 155622563 is 365226551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155622563 - 2¹⁴ = 155606179 is a prime.

It is a super-2 number, since 2×155622563² = 48436764229377938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155622503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39020 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (19659072).

Almost surely, 2^155622563 is an apocalyptic number.

155622563 is a deficient number, since it is larger than the sum of its proper divisors (1650013).

155622563 is a wasteful number, since it uses less digits than its factorization.

155622563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its digits is 54000, while the sum is 35.

The square root of 155622563 is about 12474.8772739454. The cubic root of 155622563 is about 537.8867602538.

The spelling of 155622563 in words is "one hundred fifty-five million, six hundred twenty-two thousand, five hundred sixty-three".