48631021 has 4 divisors (see below), whose sum is σ = 48646044. Its totient is φ = 48616000.

The previous prime is 48631007. The next prime is 48631049. The reversal of 48631021 is 12013684.

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 38613796 + 10017225 = 6214^2 + 3165^2 .

It is a cyclic number.

It is not a de Polignac number, because 48631021 - 2¹⁷ = 48499949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48631081) 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, 430 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (12161511).

Almost surely, 2^48631021 is an apocalyptic number.

It is an amenable number.

48631021 is a deficient number, since it is larger than the sum of its proper divisors (15023).

48631021 is a wasteful number, since it uses less digits than its factorization.

48631021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15022.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 48631021 is about 6973.5945537434. The cubic root of 48631021 is about 365.0097476599.

The spelling of 48631021 in words is "forty-eight million, six hundred thirty-one thousand, twenty-one".