48428581 has 4 divisors (see below), whose sum is σ = 48457612. Its totient is φ = 48399552.

The previous prime is 48428539. The next prime is 48428599. The reversal of 48428581 is 18582484.

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 24750625 + 23677956 = 4975^2 + 4866^2 .

It is a cyclic number.

It is not a de Polignac number, because 48428581 - 2¹⁵ = 48395813 is a prime.

It is a super-2 number, since 2×48428581² = 4690654915347122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48428981) 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, 11850 + ... + 15403.

It is an arithmetic number, because the mean of its divisors is an integer number (12114403).

Almost surely, 2^48428581 is an apocalyptic number.

It is an amenable number.

48428581 is a deficient number, since it is larger than the sum of its proper divisors (29031).

48428581 is a wasteful number, since it uses less digits than its factorization.

48428581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29030.

The product of its digits is 81920, while the sum is 40.

The square root of 48428581 is about 6959.0646641628. The cubic root of 48428581 is about 364.5025587484.

The spelling of 48428581 in words is "forty-eight million, four hundred twenty-eight thousand, five hundred eighty-one".