5157145774225 has 27 divisors (see below), whose sum is σ = 6487211893521. Its totient is φ = 4066972072800.

The previous prime is 5157145774141. The next prime is 5157145774279. The reversal of 5157145774225 is 5224775417515.

The square root of 5157145774225 is 2270935.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2853744625809 + 2303401148416 = 1689303^2 + 1517696^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5157145774225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 806178727 + ... + 806185123.

Almost surely, 2^{5157145774225} is an apocalyptic number.

5157145774225 is the 2270935-th square number.

5157145774225 is the 1135468-th centered octagonal number.

It is an amenable number.

5157145774225 is a deficient number, since it is larger than the sum of its proper divisors (1330066119296).

5157145774225 is an frugal number, since it uses more digits than its factorization.

5157145774225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12946 (or 6473 counting only the distinct ones).

The product of its digits is 13720000, while the sum is 55.

The spelling of 5157145774225 in words is "five trillion, one hundred fifty-seven billion, one hundred forty-five million, seven hundred seventy-four thousand, two hundred twenty-five".