48527981 has 4 divisors (see below), whose sum is σ = 48550332. Its totient is φ = 48505632.

The previous prime is 48527939. The next prime is 48528079. The reversal of 48527981 is 18972584.

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 22005481 + 26522500 = 4691^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 48527981 - 2⁶ = 48527917 is a prime.

It is a super-2 number, since 2×48527981² = 4709929879872722, 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 (48527581) 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, 7520 + ... + 12393.

It is an arithmetic number, because the mean of its divisors is an integer number (12137583).

Almost surely, 2^48527981 is an apocalyptic number.

It is an amenable number.

48527981 is a deficient number, since it is larger than the sum of its proper divisors (22351).

48527981 is a wasteful number, since it uses less digits than its factorization.

48527981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22350.

The product of its digits is 161280, while the sum is 44.

The square root of 48527981 is about 6966.2027676490. The cubic root of 48527981 is about 364.7517696710.

The spelling of 48527981 in words is "forty-eight million, five hundred twenty-seven thousand, nine hundred eighty-one".