47551461 has 4 divisors (see below), whose sum is σ = 63401952. Its totient is φ = 31700972.

The previous prime is 47551459. The next prime is 47551477. The reversal of 47551461 is 16415574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47551461 - 2¹ = 47551459 is a prime.

It is a super-2 number, since 2×47551461² = 4522282886469042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47551481) 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, 7925241 + ... + 7925246.

It is an arithmetic number, because the mean of its divisors is an integer number (15850488).

Almost surely, 2^47551461 is an apocalyptic number.

It is an amenable number.

47551461 is a deficient number, since it is larger than the sum of its proper divisors (15850491).

47551461 is a wasteful number, since it uses less digits than its factorization.

47551461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15850490.

The product of its digits is 16800, while the sum is 33.

The square root of 47551461 is about 6895.7567387488. The cubic root of 47551461 is about 362.2885609606.

It can be divided in two parts, 4755 and 1461, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 47551461 in words is "forty-seven million, five hundred fifty-one thousand, four hundred sixty-one".