50521401 has 36 divisors (see below), whose sum is σ = 88054512. Its totient is φ = 28862568.

The previous prime is 50521379. The next prime is 50521403. The reversal of 50521401 is 10412505.

It is not a de Polignac number, because 50521401 - 2¹³ = 50513209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50521403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9786 + ... + 14028.

Almost surely, 2^50521401 is an apocalyptic number.

It is an amenable number.

50521401 is a deficient number, since it is larger than the sum of its proper divisors (37533111).

50521401 is an equidigital number, since it uses as much as digits as its factorization.

50521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 50521401 is about 7107.8408113857. The cubic root of 50521401 is about 369.6792960027.

Adding to 50521401 its reverse (10412505), we get a palindrome (60933906).

The spelling of 50521401 in words is "fifty million, five hundred twenty-one thousand, four hundred one".