47551280 has 40 divisors (see below), whose sum is σ = 126352032. Its totient is φ = 16303104.

The previous prime is 47551247. The next prime is 47551321. The reversal of 47551280 is 8215574.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×47551280² = 4522248459276800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41897 + ... + 43016.

Almost surely, 2^47551280 is an apocalyptic number.

47551280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47551280 is an abundant number, since it is smaller than the sum of its proper divisors (78800752).

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

47551280 is a wasteful number, since it uses less digits than its factorization.

47551280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84933 (or 84927 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 47551280 is about 6895.7436147235. The cubic root of 47551280 is about 362.2881012879.

The spelling of 47551280 in words is "forty-seven million, five hundred fifty-one thousand, two hundred eighty".