47251853 has 4 divisors (see below), whose sum is σ = 51547488. Its totient is φ = 42956220.

The previous prime is 47251847. The next prime is 47251877. The reversal of 47251853 is 35815274.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 47251853 - 2⁴ = 47251837 is a prime.

It is a super-2 number, since 2×47251853² = 4465475223867218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47251753) 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, 2147801 + ... + 2147822.

It is an arithmetic number, because the mean of its divisors is an integer number (12886872).

Almost surely, 2^47251853 is an apocalyptic number.

It is an amenable number.

47251853 is a deficient number, since it is larger than the sum of its proper divisors (4295635).

47251853 is a wasteful number, since it uses less digits than its factorization.

47251853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295634.

The product of its digits is 33600, while the sum is 35.

The square root of 47251853 is about 6873.9983270292. The cubic root of 47251853 is about 361.5260654837.

It can be divided in two parts, 472 and 51853, that added together give a palindrome (52325).

The spelling of 47251853 in words is "forty-seven million, two hundred fifty-one thousand, eight hundred fifty-three".