47551532 has 48 divisors (see below), whose sum is σ = 99274560. Its totient is φ = 19498752.

The previous prime is 47551531. The next prime is 47551541. The reversal of 47551532 is 23515574.

It is a super-2 number, since 2×47551532² = 4522296391094048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47551531) 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, 127298 + ... + 127670.

It is an arithmetic number, because the mean of its divisors is an integer number (2068220).

Almost surely, 2^47551532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47551532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49637280).

47551532 is an abundant number, since it is smaller than the sum of its proper divisors (51723028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47551532 is a wasteful number, since it uses less digits than its factorization.

47551532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 47551532 is about 6895.7618868404. The cubic root of 47551532 is about 362.2887412738.

The spelling of 47551532 in words is "forty-seven million, five hundred fifty-one thousand, five hundred thirty-two".