50211390 has 16 divisors (see below), whose sum is σ = 120507408. Its totient is φ = 13389696.

The previous prime is 50211379. The next prime is 50211409. The reversal of 50211390 is 9311205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836827 + ... + 836886.

It is an arithmetic number, because the mean of its divisors is an integer number (7531713).

Almost surely, 2^50211390 is an apocalyptic number.

50211390 is an abundant number, since it is smaller than the sum of its proper divisors (70296018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50211390 is a wasteful number, since it uses less digits than its factorization.

50211390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673723.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 50211390 is about 7085.9995766300. Note that the first 3 decimals coincide. The cubic root of 50211390 is about 368.9215981961.

Adding to 50211390 its reverse (9311205), we get a palindrome (59522595).

The spelling of 50211390 in words is "fifty million, two hundred eleven thousand, three hundred ninety".