254402145220506 has 32 divisors (see below), whose sum is σ = 509090863881600. Its totient is φ = 84752955878400.

The previous prime is 254402145220501. The next prime is 254402145220523. The reversal of 254402145220506 is 605022541204452.

It is a happy number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348824931 + ... + 349553481.

It is an arithmetic number, because the mean of its divisors is an integer number (15909089496300).

Almost surely, 2^{254402145220506} is an apocalyptic number.

254402145220506 is an abundant number, since it is smaller than the sum of its proper divisors (254688718661094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254402145220506 is a wasteful number, since it uses less digits than its factorization.

254402145220506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761254.

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 254402145220506 its reverse (605022541204452), we get a palindrome (859424686424958).

The spelling of 254402145220506 in words is "two hundred fifty-four trillion, four hundred two billion, one hundred forty-five million, two hundred twenty thousand, five hundred six".