155222456 has 32 divisors (see below), whose sum is σ = 303454080. Its totient is φ = 74352000.

The previous prime is 155222447. The next prime is 155222477. The reversal of 155222456 is 654222551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21950 + ... + 28146.

It is an arithmetic number, because the mean of its divisors is an integer number (9482940).

Almost surely, 2^155222456 is an apocalyptic number.

It is an amenable number.

155222456 is a deficient number, since it is larger than the sum of its proper divisors (148231624).

155222456 is a wasteful number, since it uses less digits than its factorization.

155222456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335 (or 6331 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 155222456 is about 12458.8304427021. The cubic root of 155222456 is about 537.4253940799.

The spelling of 155222456 in words is "one hundred fifty-five million, two hundred twenty-two thousand, four hundred fifty-six".