47051431 has 8 divisors (see below), whose sum is σ = 54276480. Its totient is φ = 39952248.

The previous prime is 47051419. The next prime is 47051437. The reversal of 47051431 is 13415074.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47051431 - 2¹³ = 47043239 is a prime.

It is a super-2 number, since 2×47051431² = 4427674318295522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47051396 and 47051405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47051437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30661 + ... + 32158.

It is an arithmetic number, because the mean of its divisors is an integer number (6784560).

Almost surely, 2^47051431 is an apocalyptic number.

47051431 is a deficient number, since it is larger than the sum of its proper divisors (7225049).

47051431 is a wasteful number, since it uses less digits than its factorization.

47051431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62933.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 47051431 is about 6859.4045659955. The cubic root of 47051431 is about 361.0141951585.

The spelling of 47051431 in words is "forty-seven million, fifty-one thousand, four hundred thirty-one".