47155042 has 32 divisors (see below), whose sum is σ = 83125440. Its totient is φ = 19822080.

The previous prime is 47155027. The next prime is 47155049. The reversal of 47155042 is 24055174.

It is a self number, because there is not a number n which added to its sum of digits gives 47155042.

It is not an unprimeable number, because it can be changed into a prime (47155049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20998 + ... + 23134.

It is an arithmetic number, because the mean of its divisors is an integer number (2597670).

Almost surely, 2^47155042 is an apocalyptic number.

47155042 is a deficient number, since it is larger than the sum of its proper divisors (35970398).

47155042 is a wasteful number, since it uses less digits than its factorization.

47155042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 47155042 is about 6866.9528904748. The cubic root of 47155042 is about 361.2789948910.

The spelling of 47155042 in words is "forty-seven million, one hundred fifty-five thousand, forty-two".