245244055451 has 4 divisors (see below), whose sum is σ = 245255148072. Its totient is φ = 245232962832.

The previous prime is 245244055439. The next prime is 245244055493. The reversal of 245244055451 is 154550442542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245244055451 - 2⁶ = 245244055387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245244055399 and 245244055408.

It is not an unprimeable number, because it can be changed into a prime (245244055051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513081 + ... + 5557386.

It is an arithmetic number, because the mean of its divisors is an integer number (61313787018).

Almost surely, 2^245244055451 is an apocalyptic number.

245244055451 is a deficient number, since it is larger than the sum of its proper divisors (11092621).

245244055451 is a wasteful number, since it uses less digits than its factorization.

245244055451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092620.

The product of its (nonzero) digits is 640000, while the sum is 41.

Adding to 245244055451 its reverse (154550442542), we get a palindrome (399794497993).

The spelling of 245244055451 in words is "two hundred forty-five billion, two hundred forty-four million, fifty-five thousand, four hundred fifty-one".