155256064 has 36 divisors (see below), whose sum is σ = 311145856. Its totient is φ = 77317632.

The previous prime is 155256043. The next prime is 155256067. The reversal of 155256064 is 460652551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155256067) 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, 71377 + ... + 73519.

Almost surely, 2^155256064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155256064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155572928).

155256064 is an abundant number, since it is smaller than the sum of its proper divisors (155889792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155256064 is an equidigital number, since it uses as much as digits as its factorization.

155256064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 155256064 is about 12460.1791319387. The cubic root of 155256064 is about 537.4641781788.

The spelling of 155256064 in words is "one hundred fifty-five million, two hundred fifty-six thousand, sixty-four".