47921755 has 12 divisors (see below), whose sum is σ = 66895200. Its totient is φ = 32860464.

The previous prime is 47921729. The next prime is 47921767. The reversal of 47921755 is 55712974.

It is not a de Polignac number, because 47921755 - 2⁵ = 47921723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97555 + ... + 98044.

It is an arithmetic number, because the mean of its divisors is an integer number (5574600).

Almost surely, 2^47921755 is an apocalyptic number.

47921755 is a deficient number, since it is larger than the sum of its proper divisors (18973445).

47921755 is a wasteful number, since it uses less digits than its factorization.

47921755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195618 (or 195611 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 47921755 is about 6922.5540806844. The cubic root of 47921755 is about 363.2265381120.

The spelling of 47921755 in words is "forty-seven million, nine hundred twenty-one thousand, seven hundred fifty-five".