47211507 has 24 divisors (see below), whose sum is σ = 80627040. Its totient is φ = 26046720.

The previous prime is 47211487. The next prime is 47211517. The reversal of 47211507 is 70511274.

It is not a de Polignac number, because 47211507 - 2⁶ = 47211443 is a prime.

It is a super-2 number, since 2×47211507² = 4457852786422098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47211517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11094 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (3359460).

Almost surely, 2^47211507 is an apocalyptic number.

47211507 is a deficient number, since it is larger than the sum of its proper divisors (33415533).

47211507 is a wasteful number, since it uses less digits than its factorization.

47211507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25883 (or 25880 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 47211507 is about 6871.0630181945. The cubic root of 47211507 is about 361.4231398265.

The spelling of 47211507 in words is "forty-seven million, two hundred eleven thousand, five hundred seven".