50531121 has 12 divisors (see below), whose sum is σ = 75693072. Its totient is φ = 33687252.

The previous prime is 50531113. The next prime is 50531153. The reversal of 50531121 is 12113505.

It is not a de Polignac number, because 50531121 - 2³ = 50531113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50531094 and 50531103.

It is not an unprimeable number, because it can be changed into a prime (50531821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103731 + ... + 104216.

It is an arithmetic number, because the mean of its divisors is an integer number (6307756).

Almost surely, 2^50531121 is an apocalyptic number.

It is an amenable number.

50531121 is a deficient number, since it is larger than the sum of its proper divisors (25161951).

50531121 is an equidigital number, since it uses as much as digits as its factorization.

50531121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207962 (or 207950 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 50531121 is about 7108.5245304493. The cubic root of 50531121 is about 369.7030024734.

Adding to 50531121 its reverse (12113505), we get a palindrome (62644626).

It can be divided in two parts, 505 and 31121, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 50531121 in words is "fifty million, five hundred thirty-one thousand, one hundred twenty-one".