251450255 has 16 divisors (see below), whose sum is σ = 345461760. Its totient is φ = 172115232.

The previous prime is 251450233. The next prime is 251450257. The reversal of 251450255 is 552054152.

It is a cyclic number.

It is not a de Polignac number, because 251450255 - 2⁸ = 251449999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251450257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14426 + ... + 26664.

It is an arithmetic number, because the mean of its divisors is an integer number (21591360).

Almost surely, 2^251450255 is an apocalyptic number.

251450255 is a deficient number, since it is larger than the sum of its proper divisors (94011505).

251450255 is a wasteful number, since it uses less digits than its factorization.

251450255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 251450255 is about 15857.1830726646. The cubic root of 251450255 is about 631.1763148969.

The spelling of 251450255 in words is "two hundred fifty-one million, four hundred fifty thousand, two hundred fifty-five".