48251021 has 12 divisors (see below), whose sum is σ = 59713632. Its totient is φ = 38175696.

The previous prime is 48251011. The next prime is 48251023. The reversal of 48251021 is 12015284.

It is a de Polignac number, because none of the positive numbers 2^k-48251021 is a prime.

It is a super-2 number, since 2×48251021² = 4656322055084882, 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 (48251023) 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, 19211 + ... + 21576.

It is an arithmetic number, because the mean of its divisors is an integer number (4976136).

Almost surely, 2^48251021 is an apocalyptic number.

It is an amenable number.

48251021 is a deficient number, since it is larger than the sum of its proper divisors (11462611).

48251021 is a wasteful number, since it uses less digits than its factorization.

48251021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40820 (or 40807 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 48251021 is about 6946.2954875243. The cubic root of 48251021 is about 364.0565388366.

The spelling of 48251021 in words is "forty-eight million, two hundred fifty-one thousand, twenty-one".