47453257 has 4 divisors (see below), whose sum is σ = 47492500. Its totient is φ = 47414016.

The previous prime is 47453227. The next prime is 47453261. The reversal of 47453257 is 75235474.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 39702601 = 2784^2 + 6301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47453257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47453207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17748 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (11873125).

Almost surely, 2^47453257 is an apocalyptic number.

It is an amenable number.

47453257 is a deficient number, since it is larger than the sum of its proper divisors (39243).

47453257 is a wasteful number, since it uses less digits than its factorization.

47453257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242.

The product of its digits is 117600, while the sum is 37.

The square root of 47453257 is about 6888.6324477359. The cubic root of 47453257 is about 362.0389877933.

The spelling of 47453257 in words is "forty-seven million, four hundred fifty-three thousand, two hundred fifty-seven".