47478231025 has 9 divisors (see below), whose sum is σ = 58874357451. Its totient is φ = 37981713240.

The previous prime is 47478230977. The next prime is 47478231029. The reversal of 47478231025 is 52013287474.

The square root of 47478231025 is 217895.

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., 17092163169 + 30386067856 = 130737^2 + 174316^2 .

It is not a de Polignac number, because 47478231025 - 2⁷ = 47478230897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47478231029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1067686 + ... + 1111264.

Almost surely, 2^47478231025 is an apocalyptic number.

47478231025 is the 217895-th square number.

47478231025 is the 108948-th centered octagonal number.

It is an amenable number.

47478231025 is a deficient number, since it is larger than the sum of its proper divisors (11396126426).

47478231025 is an frugal number, since it uses more digits than its factorization.

47478231025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87168 (or 43584 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 47478231025 in words is "forty-seven billion, four hundred seventy-eight million, two hundred thirty-one thousand, twenty-five".