50253021 has 64 divisors (see below), whose sum is σ = 92951040. Its totient is φ = 26127360.

The previous prime is 50253017. The next prime is 50253023. The reversal of 50253021 is 12035205.

It is a happy number.

It is not a de Polignac number, because 50253021 - 2² = 50253017 is a prime.

It is a super-2 number, since 2×50253021² = 5050732239252882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50252985 and 50253003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50253023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277551 + ... + 277731.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^50253021 is an apocalyptic number.

It is an amenable number.

50253021 is a deficient number, since it is larger than the sum of its proper divisors (42698019).

50253021 is a wasteful number, since it uses less digits than its factorization.

50253021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50253021 is about 7088.9365210869. The cubic root of 50253021 is about 369.0235294666.

Adding to 50253021 its reverse (12035205), we get a palindrome (62288226).

The spelling of 50253021 in words is "fifty million, two hundred fifty-three thousand, twenty-one".