47851057 has 4 divisors (see below), whose sum is σ = 47965680. Its totient is φ = 47736436.

The previous prime is 47851043. The next prime is 47851061. The reversal of 47851057 is 75015874.

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 a de Polignac number, because none of the positive numbers 2^k-47851057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47851007) 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, 56683 + ... + 57520.

It is an arithmetic number, because the mean of its divisors is an integer number (11991420).

Almost surely, 2^47851057 is an apocalyptic number.

It is an amenable number.

47851057 is a deficient number, since it is larger than the sum of its proper divisors (114623).

47851057 is a wasteful number, since it uses less digits than its factorization.

47851057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114622.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 47851057 is about 6917.4458436622. The cubic root of 47851057 is about 363.0478299362.

The spelling of 47851057 in words is "forty-seven million, eight hundred fifty-one thousand, fifty-seven".