254525221445 has 16 divisors (see below), whose sum is σ = 333362485440. Its totient is φ = 185017123200.

The previous prime is 254525221427. The next prime is 254525221451. The reversal of 254525221445 is 544122525452.

It is a de Polignac number, because none of the positive numbers 2^k-254525221445 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040000 + ... + 1261209.

It is an arithmetic number, because the mean of its divisors is an integer number (20835155340).

Almost surely, 2^254525221445 is an apocalyptic number.

It is an amenable number.

254525221445 is a deficient number, since it is larger than the sum of its proper divisors (78837263995).

254525221445 is a wasteful number, since it uses less digits than its factorization.

254525221445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303236.

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

Adding to 254525221445 its reverse (544122525452), we get a palindrome (798647746897).

The spelling of 254525221445 in words is "two hundred fifty-four billion, five hundred twenty-five million, two hundred twenty-one thousand, four hundred forty-five".