154775362225 has 81 divisors (see below), whose sum is σ = 221237083627. Its totient is φ = 107323612000.

The previous prime is 154775362187. The next prime is 154775362267. The reversal of 154775362225 is 522263577451.

The square root of 154775362225 is 393415.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 55719130401 + 99056231824 = 236049^2 + 314732^2 .

It is not a de Polignac number, because 154775362225 - 2⁷ = 154775362097 is a prime.

It is a Duffinian number.

Its product of digits (3528000) is a multiple of the sum of its prime divisors (350).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 497669820 + ... + 497670130.

Almost surely, 2^154775362225 is an apocalyptic number.

154775362225 is the 393415-th square number.

154775362225 is the 196708-th centered octagonal number.

It is an amenable number.

154775362225 is a deficient number, since it is larger than the sum of its proper divisors (66461721402).

154775362225 is an equidigital number, since it uses as much as digits as its factorization.

154775362225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 350 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 49.

Multiplying 154775362225 by its sum of digits (49), we get a square (7583992749025 = 2753905²).

The spelling of 154775362225 in words is "one hundred fifty-four billion, seven hundred seventy-five million, three hundred sixty-two thousand, two hundred twenty-five".