240255204403 has 4 divisors (see below), whose sum is σ = 241027729488. Its totient is φ = 239482679320.

The previous prime is 240255204379. The next prime is 240255204437. The reversal of 240255204403 is 304402552042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304402552042 = 2 ⋅152201276021.

It is a cyclic number.

It is not a de Polignac number, because 240255204403 - 2⁹ = 240255203891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240255204463) 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, 386262076 + ... + 386262697.

It is an arithmetic number, because the mean of its divisors is an integer number (60256932372).

Almost surely, 2^240255204403 is an apocalyptic number.

240255204403 is a deficient number, since it is larger than the sum of its proper divisors (772525085).

240255204403 is an equidigital number, since it uses as much as digits as its factorization.

240255204403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772525084.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 240255204403 its reverse (304402552042), we get a palindrome (544657756445).

The spelling of 240255204403 in words is "two hundred forty billion, two hundred fifty-five million, two hundred four thousand, four hundred three".