47051157 has 4 divisors (see below), whose sum is σ = 62734880. Its totient is φ = 31367436.

The previous prime is 47051117. The next prime is 47051171. The reversal of 47051157 is 75115074.

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 not a de Polignac number, because 47051157 - 2⁶ = 47051093 is a prime.

It is a super-2 number, since 2×47051157² = 4427622750077298, 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 (47051107) 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, 7841857 + ... + 7841862.

It is an arithmetic number, because the mean of its divisors is an integer number (15683720).

Almost surely, 2^47051157 is an apocalyptic number.

It is an amenable number.

47051157 is a deficient number, since it is larger than the sum of its proper divisors (15683723).

47051157 is a wasteful number, since it uses less digits than its factorization.

47051157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15683722.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 47051157 is about 6859.3845933874. The cubic root of 47051157 is about 361.0134943787.

The spelling of 47051157 in words is "forty-seven million, fifty-one thousand, one hundred fifty-seven".