47287555 has 32 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 30585600.

The previous prime is 47287549. The next prime is 47287571. The reversal of 47287555 is 55578274.

It is not a de Polignac number, because 47287555 - 2⁹ = 47287043 is a prime.

It is a super-2 number, since 2×47287555² = 4472225715756050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43954 + ... + 45016.

It is an arithmetic number, because the mean of its divisors is an integer number (2145024).

Almost surely, 2^47287555 is an apocalyptic number.

47287555 is a deficient number, since it is larger than the sum of its proper divisors (21353213).

47287555 is a wasteful number, since it uses less digits than its factorization.

47287555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its digits is 392000, while the sum is 43.

The square root of 47287555 is about 6876.5947241349. The cubic root of 47287555 is about 361.6170951003.

The spelling of 47287555 in words is "forty-seven million, two hundred eighty-seven thousand, five hundred fifty-five".