47661545 has 8 divisors (see below), whose sum is σ = 57729024. Its totient is φ = 37772464.

The previous prime is 47661527. The next prime is 47661577. The reversal of 47661545 is 54516674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47661545 - 2¹⁰ = 47660521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47661499 and 47661508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44009 + ... + 45078.

It is an arithmetic number, because the mean of its divisors is an integer number (7216128).

Almost surely, 2^47661545 is an apocalyptic number.

It is an amenable number.

47661545 is a deficient number, since it is larger than the sum of its proper divisors (10067479).

47661545 is a wasteful number, since it uses less digits than its factorization.

47661545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89199.

The product of its digits is 100800, while the sum is 38.

The square root of 47661545 is about 6903.7341345101. The cubic root of 47661545 is about 362.5679175160.

The spelling of 47661545 in words is "forty-seven million, six hundred sixty-one thousand, five hundred forty-five".