256500150 has 48 divisors (see below), whose sum is σ = 649672704. Its totient is φ = 66942880.

The previous prime is 256500149. The next prime is 256500151. The reversal of 256500150 is 51005652.

It is an interprime number because it is at equal distance from previous prime (256500149) and next prime (256500151).

It is a self number, because there is not a number n which added to its sum of digits gives 256500150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256500151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11142 + ... + 25241.

It is an arithmetic number, because the mean of its divisors is an integer number (13534848).

Almost surely, 2^256500150 is an apocalyptic number.

256500150 is an abundant number, since it is smaller than the sum of its proper divisors (393172554).

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

256500150 is a wasteful number, since it uses less digits than its factorization.

256500150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36445 (or 36440 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 256500150 is about 16015.6220609753. The cubic root of 256500150 is about 635.3736614927.

The spelling of 256500150 in words is "two hundred fifty-six million, five hundred thousand, one hundred fifty".