50706640 has 20 divisors (see below), whose sum is σ = 117893124. Its totient is φ = 20282624.

The previous prime is 50706629. The next prime is 50706647. The reversal of 50706640 is 4660705.

It can be written as a sum of positive squares in 2 ways, for example, as 8248384 + 42458256 = 2872^2 + 6516^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 50706599 and 50706608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50706647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316837 + ... + 316996.

Almost surely, 2^50706640 is an apocalyptic number.

It is an amenable number.

50706640 is an abundant number, since it is smaller than the sum of its proper divisors (67186484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50706640 is a wasteful number, since it uses less digits than its factorization.

50706640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633846 (or 633840 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 50706640 is about 7120.8594986841. The cubic root of 50706640 is about 370.1305602064.

The spelling of 50706640 in words is "fifty million, seven hundred six thousand, six hundred forty".