47155232 has 12 divisors (see below), whose sum is σ = 92836926. Its totient is φ = 23577600.

The previous prime is 47155231. The next prime is 47155237. The reversal of 47155232 is 23255174.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 5216656 = 6476^2 + 2284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47155195 and 47155204.

It is not an unprimeable number, because it can be changed into a prime (47155231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736769 + ... + 736832.

Almost surely, 2^47155232 is an apocalyptic number.

It is an amenable number.

47155232 is a deficient number, since it is larger than the sum of its proper divisors (45681694).

47155232 is a wasteful number, since it uses less digits than its factorization.

47155232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473611 (or 1473603 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 47155232 is about 6866.9667248356. The cubic root of 47155232 is about 361.2794801195.

The spelling of 47155232 in words is "forty-seven million, one hundred fifty-five thousand, two hundred thirty-two".