47543042 has 4 divisors (see below), whose sum is σ = 71314566. Its totient is φ = 23771520.

The previous prime is 47543029. The next prime is 47543051. The reversal of 47543042 is 24034574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24034574 = 2 ⋅12017287.

It can be written as a sum of positive squares in only one way, i.e., 46936201 + 606841 = 6851^2 + 779^2 .

It is a super-2 number, since 2×47543042² = 4520681685227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47542996 and 47543014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11885759 + ... + 11885762.

Almost surely, 2^47543042 is an apocalyptic number.

47543042 is a deficient number, since it is larger than the sum of its proper divisors (23771524).

47543042 is a wasteful number, since it uses less digits than its factorization.

47543042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23771523.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 47543042 is about 6895.1462638584. The cubic root of 47543042 is about 362.2671786002.

The spelling of 47543042 in words is "forty-seven million, five hundred forty-three thousand, forty-two".