47254457 has 4 divisors (see below), whose sum is σ = 48055440. Its totient is φ = 46453476.

The previous prime is 47254381. The next prime is 47254469. The reversal of 47254457 is 75445274.

47254457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75445274 = 2 ⋅37722637.

It is a cyclic number.

It is not a de Polignac number, because 47254457 - 2⁸ = 47254201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47254457.

It is not an unprimeable number, because it can be changed into a prime (47254357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400403 + ... + 400520.

It is an arithmetic number, because the mean of its divisors is an integer number (12013860).

Almost surely, 2^47254457 is an apocalyptic number.

It is an amenable number.

47254457 is a deficient number, since it is larger than the sum of its proper divisors (800983).

47254457 is an equidigital number, since it uses as much as digits as its factorization.

47254457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800982.

The product of its digits is 156800, while the sum is 38.

The square root of 47254457 is about 6874.1877338344. The cubic root of 47254457 is about 361.5327064690.

The spelling of 47254457 in words is "forty-seven million, two hundred fifty-four thousand, four hundred fifty-seven".