50921146 has 4 divisors (see below), whose sum is σ = 76381722. Its totient is φ = 25460572.

The previous prime is 50921111. The next prime is 50921147. The reversal of 50921146 is 64112905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64112905 = 5 ⋅12822581.

It can be written as a sum of positive squares in only one way, i.e., 27447121 + 23474025 = 5239^2 + 4845^2 .

It is not an unprimeable number, because it can be changed into a prime (50921147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730285 + ... + 12730288.

Almost surely, 2^50921146 is an apocalyptic number.

50921146 is a deficient number, since it is larger than the sum of its proper divisors (25460576).

50921146 is a wasteful number, since it uses less digits than its factorization.

50921146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25460575.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 50921146 is about 7135.9054085659. The cubic root of 50921146 is about 370.6517511998.

The spelling of 50921146 in words is "fifty million, nine hundred twenty-one thousand, one hundred forty-six".