154544514452225 has 48 divisors (see below), whose sum is σ = 202515388185600. Its totient is φ = 116668232873280.

The previous prime is 154544514452161. The next prime is 154544514452233. The reversal of 154544514452225 is 522254415445451.

It is a happy number.

It is not a de Polignac number, because 154544514452225 - 2⁶ = 154544514452161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128169092 + ... + 129369258.

It is an arithmetic number, because the mean of its divisors is an integer number (4219070587200).

Almost surely, 2^{154544514452225} is an apocalyptic number.

It is an amenable number.

154544514452225 is a deficient number, since it is larger than the sum of its proper divisors (47970873733375).

154544514452225 is a wasteful number, since it uses less digits than its factorization.

154544514452225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201262 (or 1201257 counting only the distinct ones).

The product of its digits is 25600000, while the sum is 53.

Adding to 154544514452225 its reverse (522254415445451), we get a palindrome (676798929897676).

The spelling of 154544514452225 in words is "one hundred fifty-four trillion, five hundred forty-four billion, five hundred fourteen million, four hundred fifty-two thousand, two hundred twenty-five".