50121615 has 16 divisors (see below), whose sum is σ = 80642016. Its totient is φ = 26582400.

The previous prime is 50121607. The next prime is 50121619. The reversal of 50121615 is 51612105.

It is not a de Polignac number, because 50121615 - 2³ = 50121607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50121591 and 50121600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6516 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (5040126).

Almost surely, 2^50121615 is an apocalyptic number.

50121615 is a deficient number, since it is larger than the sum of its proper divisors (30520401).

50121615 is a wasteful number, since it uses less digits than its factorization.

50121615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18650.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 50121615 is about 7079.6620682064. The cubic root of 50121615 is about 368.7015970175.

The spelling of 50121615 in words is "fifty million, one hundred twenty-one thousand, six hundred fifteen".