47661155 has 4 divisors (see below), whose sum is σ = 57193392. Its totient is φ = 38128920.

The previous prime is 47661113. The next prime is 47661161. The reversal of 47661155 is 55116674.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47661155 - 2⁶ = 47661091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766111 + ... + 4766120.

It is an arithmetic number, because the mean of its divisors is an integer number (14298348).

Almost surely, 2^47661155 is an apocalyptic number.

47661155 is a deficient number, since it is larger than the sum of its proper divisors (9532237).

47661155 is an equidigital number, since it uses as much as digits as its factorization.

47661155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532236.

The product of its digits is 25200, while the sum is 35.

The square root of 47661155 is about 6903.7058888687. The cubic root of 47661155 is about 362.5669285855.

The spelling of 47661155 in words is "forty-seven million, six hundred sixty-one thousand, one hundred fifty-five".