155469056 has 18 divisors (see below), whose sum is σ = 310331322. Its totient is φ = 77734400.

The previous prime is 155469047. The next prime is 155469073. The reversal of 155469056 is 650964551.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 70829056 = 9200^2 + 8416^2 .

It is a super-2 number, since 2×155469056² = 48341254747062272, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 303395 + ... + 303906.

It is an arithmetic number, because the mean of its divisors is an integer number (17240629).

Almost surely, 2^155469056 is an apocalyptic number.

155469056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155469056 is a deficient number, since it is larger than the sum of its proper divisors (154862266).

155469056 is an frugal number, since it uses more digits than its factorization.

155469056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607317 (or 607303 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 155469056 is about 12468.7231102467. The cubic root of 155469056 is about 537.7098438625.

The spelling of 155469056 in words is "one hundred fifty-five million, four hundred sixty-nine thousand, fifty-six".