47633257 has 4 divisors (see below), whose sum is σ = 54438016. Its totient is φ = 40828500.

The previous prime is 47633249. The next prime is 47633263. The reversal of 47633257 is 75233674.

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: 75233674 = 2 ⋅37616837.

It is a cyclic number.

It is not a de Polignac number, because 47633257 - 2³ = 47633249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47633657) 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, 3402369 + ... + 3402382.

It is an arithmetic number, because the mean of its divisors is an integer number (13609504).

Almost surely, 2^47633257 is an apocalyptic number.

It is an amenable number.

47633257 is a deficient number, since it is larger than the sum of its proper divisors (6804759).

47633257 is an equidigital number, since it uses as much as digits as its factorization.

47633257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804758.

The product of its digits is 105840, while the sum is 37.

The square root of 47633257 is about 6901.6850840936. The cubic root of 47633257 is about 362.4961730868.

It can be divided in two parts, 476 and 33257, that added together give a palindrome (33733).

The spelling of 47633257 in words is "forty-seven million, six hundred thirty-three thousand, two hundred fifty-seven".