48365581 has 4 divisors (see below), whose sum is σ = 52762464. Its totient is φ = 43968700.

The previous prime is 48365579. The next prime is 48365587. The reversal of 48365581 is 18556384.

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 48365581 - 2¹ = 48365579 is a prime.

It is a super-2 number, since 2×48365581² = 4678458850935122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48365587) 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, 2198425 + ... + 2198446.

It is an arithmetic number, because the mean of its divisors is an integer number (13190616).

Almost surely, 2^48365581 is an apocalyptic number.

It is an amenable number.

48365581 is a deficient number, since it is larger than the sum of its proper divisors (4396883).

48365581 is a wasteful number, since it uses less digits than its factorization.

48365581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396882.

The product of its digits is 115200, while the sum is 40.

The square root of 48365581 is about 6954.5367207313. The cubic root of 48365581 is about 364.3444315597.

The spelling of 48365581 in words is "forty-eight million, three hundred sixty-five thousand, five hundred eighty-one".