47015261 has 4 divisors (see below), whose sum is σ = 47092572. Its totient is φ = 46937952.

The previous prime is 47015257. The next prime is 47015263. The reversal of 47015261 is 16251074.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4687225 + 42328036 = 2165^2 + 6506^2 .

It is a cyclic number.

It is not a de Polignac number, because 47015261 - 2² = 47015257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47015261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47015263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37736 + ... + 38961.

It is an arithmetic number, because the mean of its divisors is an integer number (11773143).

Almost surely, 2^47015261 is an apocalyptic number.

It is an amenable number.

47015261 is a deficient number, since it is larger than the sum of its proper divisors (77311).

47015261 is an equidigital number, since it uses as much as digits as its factorization.

47015261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77310.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 47015261 is about 6856.7675328831. The cubic root of 47015261 is about 360.9216635706.

The spelling of 47015261 in words is "forty-seven million, fifteen thousand, two hundred sixty-one".