47954257 has 12 divisors (see below), whose sum is σ = 53337180. Its totient is φ = 43063488.

The previous prime is 47954239. The next prime is 47954267. The reversal of 47954257 is 75245974.

It can be written as a sum of positive squares in 6 ways, for example, as 633616 + 47320641 = 796^2 + 6879^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47954257 is a prime.

It is a super-2 number, since 2×47954257² = 4599221528844098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47954227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2419 + ... + 10087.

It is an arithmetic number, because the mean of its divisors is an integer number (4444765).

Almost surely, 2^47954257 is an apocalyptic number.

It is an amenable number.

47954257 is a deficient number, since it is larger than the sum of its proper divisors (5382923).

47954257 is a wasteful number, since it uses less digits than its factorization.

47954257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732 (or 7719 counting only the distinct ones).

The product of its digits is 352800, while the sum is 43.

The square root of 47954257 is about 6924.9012267324. The cubic root of 47954257 is about 363.3086366702.

The spelling of 47954257 in words is "forty-seven million, nine hundred fifty-four thousand, two hundred fifty-seven".