155222552 has 32 divisors (see below), whose sum is σ = 311401200. Its totient is φ = 72316800.

The previous prime is 155222527. The next prime is 155222593. The reversal of 155222552 is 255222551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902 + ... + 17642.

Almost surely, 2^155222552 is an apocalyptic number.

It is an amenable number.

155222552 is an abundant number, since it is smaller than the sum of its proper divisors (156178648).

155222552 is a wasteful number, since it uses less digits than its factorization.

155222552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16827 (or 16823 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 155222552 is about 12458.8342953906. The cubic root of 155222552 is about 537.4255048732.

Subtracting 155222552 from its reverse (255222551), we obtain a palindrome (99999999).

The spelling of 155222552 in words is "one hundred fifty-five million, two hundred twenty-two thousand, five hundred fifty-two".