47215355 has 32 divisors (see below), whose sum is σ = 63825408. Its totient is φ = 33241600.

The previous prime is 47215309. The next prime is 47215397. The reversal of 47215355 is 55351274.

47215355 = 1240² + 1241² + ... + 1269².

It is not a de Polignac number, because 47215355 - 2⁶ = 47215291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417779 + ... + 417891.

It is an arithmetic number, because the mean of its divisors is an integer number (1994544).

Almost surely, 2^47215355 is an apocalyptic number.

47215355 is a deficient number, since it is larger than the sum of its proper divisors (16610053).

47215355 is a wasteful number, since it uses less digits than its factorization.

47215355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

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

The square root of 47215355 is about 6871.3430273855. The cubic root of 47215355 is about 361.4329588908.

The spelling of 47215355 in words is "forty-seven million, two hundred fifteen thousand, three hundred fifty-five".