50701221 has 32 divisors (see below), whose sum is σ = 77145600. Its totient is φ = 33312384.

The previous prime is 50701181. The next prime is 50701279. The reversal of 50701221 is 12210705.

It is not a de Polignac number, because 50701221 - 2¹⁰ = 50700197 is a prime.

It is a super-2 number, since 2×50701221² = 5141227621781682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50701194 and 50701203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50701121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212020 + ... + 212258.

It is an arithmetic number, because the mean of its divisors is an integer number (2410800).

Almost surely, 2^50701221 is an apocalyptic number.

It is an amenable number.

50701221 is a deficient number, since it is larger than the sum of its proper divisors (26444379).

50701221 is an frugal number, since it uses more digits than its factorization.

50701221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 50701221 is about 7120.4789866975. The cubic root of 50701221 is about 370.1173744976.

Adding to 50701221 its reverse (12210705), we get a palindrome (62911926).

The spelling of 50701221 in words is "fifty million, seven hundred one thousand, two hundred twenty-one".