240256253 has 2 divisors, whose sum is σ = 240256254. Its totient is φ = 240256252.

The previous prime is 240256217. The next prime is 240256277. The reversal of 240256253 is 352652042.

240256253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 108534724 = 11477^2 + 10418^2 .

It is a cyclic number.

It is not a de Polignac number, because 240256253 - 2⁸ = 240255997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240256153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120128126 + 120128127.

It is an arithmetic number, because the mean of its divisors is an integer number (120128127).

Almost surely, 2^240256253 is an apocalyptic number.

It is an amenable number.

240256253 is a deficient number, since it is larger than the sum of its proper divisors (1).

240256253 is an equidigital number, since it uses as much as digits as its factorization.

240256253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 240256253 is about 15500.2017083650. The cubic root of 240256253 is about 621.6675996443.

The spelling of 240256253 in words is "two hundred forty million, two hundred fifty-six thousand, two hundred fifty-three".