155361256 has 16 divisors (see below), whose sum is σ = 291802500. Its totient is φ = 77547264.

The previous prime is 155361253. The next prime is 155361281. The reversal of 155361256 is 652163551.

155361256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154604356 + 756900 = 12434^2 + 870^2 .

It is not an unprimeable number, because it can be changed into a prime (155361253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11631 + ... + 21118.

Almost surely, 2^155361256 is an apocalyptic number.

It is an amenable number.

155361256 is a deficient number, since it is larger than the sum of its proper divisors (136441244).

155361256 is a wasteful number, since it uses less digits than its factorization.

155361256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33348 (or 33344 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

The square root of 155361256 is about 12464.3995443022. The cubic root of 155361256 is about 537.5855350446.

The spelling of 155361256 in words is "one hundred fifty-five million, three hundred sixty-one thousand, two hundred fifty-six".