48521986 has 4 divisors (see below), whose sum is σ = 72782982. Its totient is φ = 24260992.

The previous prime is 48521969. The next prime is 48521987. The reversal of 48521986 is 68912584.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 18326961 = 5495^2 + 4281^2 .

It is not an unprimeable number, because it can be changed into a prime (48521987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12130495 + ... + 12130498.

Almost surely, 2^48521986 is an apocalyptic number.

48521986 is a deficient number, since it is larger than the sum of its proper divisors (24260996).

48521986 is a wasteful number, since it uses less digits than its factorization.

48521986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24260995.

The product of its digits is 138240, while the sum is 43.

The square root of 48521986 is about 6965.7724625486. The cubic root of 48521986 is about 364.7367489423.

The spelling of 48521986 in words is "forty-eight million, five hundred twenty-one thousand, nine hundred eighty-six".