48642021 has 12 divisors (see below), whose sum is σ = 70408000. Its totient is φ = 32360040.

The previous prime is 48641993. The next prime is 48642053. The reversal of 48642021 is 12024684.

48642021 = 28² + 29² + ... + 526².

It is not a de Polignac number, because 48642021 - 2⁷ = 48641893 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 (48642091) 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, 925 + ... + 9906.

Almost surely, 2^48642021 is an apocalyptic number.

It is an amenable number.

48642021 is a deficient number, since it is larger than the sum of its proper divisors (21765979).

48642021 is a wasteful number, since it uses less digits than its factorization.

48642021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11336 (or 11333 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 48642021 is about 6974.3831985345. The cubic root of 48642021 is about 365.0372664771.

The spelling of 48642021 in words is "forty-eight million, six hundred forty-two thousand, twenty-one".