254402145220503 has 32 divisors (see below), whose sum is σ = 390042163658752. Its totient is φ = 144479513311200.

The previous prime is 254402145220501. The next prime is 254402145220523. The reversal of 254402145220503 is 305022541204452.

It is not a de Polignac number, because 254402145220503 - 2¹ = 254402145220501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254402145220501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491938158 + ... + 492455028.

It is an arithmetic number, because the mean of its divisors is an integer number (12188817614336).

Almost surely, 2^{254402145220503} is an apocalyptic number.

254402145220503 is a deficient number, since it is larger than the sum of its proper divisors (135640018438249).

254402145220503 is a wasteful number, since it uses less digits than its factorization.

254402145220503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660835.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 254402145220503 its reverse (305022541204452), we get a palindrome (559424686424955).

The spelling of 254402145220503 in words is "two hundred fifty-four trillion, four hundred two billion, one hundred forty-five million, two hundred twenty thousand, five hundred three".