50252021 has 4 divisors (see below), whose sum is σ = 50394732. Its totient is φ = 50109312.

The previous prime is 50251973. The next prime is 50252029. The reversal of 50252021 is 12025205.

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 7349521 + 42902500 = 2711^2 + 6550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50252021 is a prime.

It is a super-2 number, since 2×50252021² = 5050531229168882, 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 (50252029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70826 + ... + 71531.

It is an arithmetic number, because the mean of its divisors is an integer number (12598683).

Almost surely, 2^50252021 is an apocalyptic number.

It is an amenable number.

50252021 is a deficient number, since it is larger than the sum of its proper divisors (142711).

50252021 is a wasteful number, since it uses less digits than its factorization.

50252021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142710.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 50252021 is about 7088.8659882946. The cubic root of 50252021 is about 369.0210816803.

Adding to 50252021 its reverse (12025205), we get a palindrome (62277226).

The spelling of 50252021 in words is "fifty million, two hundred fifty-two thousand, twenty-one".