50154021 has 12 divisors (see below), whose sum is σ = 74943180. Its totient is φ = 32282880.

The previous prime is 50154011. The next prime is 50154031. The reversal of 50154021 is 12045105.

It is an interprime number because it is at equal distance from previous prime (50154011) and next prime (50154031).

It can be written as a sum of positive squares in 2 ways, for example, as 35820225 + 14333796 = 5985^2 + 3786^2 .

It is not a de Polignac number, because 50154021 - 2¹⁰ = 50152997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50153985 and 50154003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50154011) 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, 95820 + ... + 96341.

It is an arithmetic number, because the mean of its divisors is an integer number (6245265).

Almost surely, 2^50154021 is an apocalyptic number.

It is an amenable number.

50154021 is a deficient number, since it is larger than the sum of its proper divisors (24789159).

50154021 is a wasteful number, since it uses less digits than its factorization.

50154021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192196 (or 192193 counting only the distinct ones).

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

The square root of 50154021 is about 7081.9503669540. The cubic root of 50154021 is about 368.7810409185.

Adding to 50154021 its reverse (12045105), we get a palindrome (62199126).

The spelling of 50154021 in words is "fifty million, one hundred fifty-four thousand, twenty-one".