50121693 has 32 divisors (see below), whose sum is σ = 76677120. Its totient is φ = 32341680.

The previous prime is 50121691. The next prime is 50121697. The reversal of 50121693 is 39612105.

It is not a de Polignac number, because 50121693 - 2¹ = 50121691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121691) 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, 161008 + ... + 161318.

It is an arithmetic number, because the mean of its divisors is an integer number (2396160).

Almost surely, 2^50121693 is an apocalyptic number.

It is an amenable number.

50121693 is a deficient number, since it is larger than the sum of its proper divisors (26555427).

50121693 is a wasteful number, since it uses less digits than its factorization.

50121693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 50121693 is about 7079.6675769417. The cubic root of 50121693 is about 368.7017882770.

Adding to 50121693 its reverse (39612105), we get a palindrome (89733798).

The spelling of 50121693 in words is "fifty million, one hundred twenty-one thousand, six hundred ninety-three".