48787281 has 12 divisors (see below), whose sum is σ = 70664308. Its totient is φ = 32435424.

The previous prime is 48787267. The next prime is 48787303. The reversal of 48787281 is 18278784.

It can be written as a sum of positive squares in 2 ways, for example, as 27248400 + 21538881 = 5220^2 + 4641^2 .

It is not a de Polignac number, because 48787281 - 2²⁵ = 15232849 is a prime.

It is a super-2 number, since 2×48787281² = 4760397574745922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48787261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3910 + ... + 10623.

Almost surely, 2^48787281 is an apocalyptic number.

It is an amenable number.

48787281 is a deficient number, since it is larger than the sum of its proper divisors (21877027).

48787281 is a wasteful number, since it uses less digits than its factorization.

48787281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14912 (or 14909 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 48787281 is about 6984.7892595267. The cubic root of 48787281 is about 365.4002764586.

The spelling of 48787281 in words is "forty-eight million, seven hundred eighty-seven thousand, two hundred eighty-one".