50657620 has 96 divisors (see below), whose sum is σ = 123748128. Its totient is φ = 17252352.

The previous prime is 50657611. The next prime is 50657623. The reversal of 50657620 is 2675605.

It can be written as a sum of positive squares in 16 ways, for example, as 15397776 + 35259844 = 3924^2 + 5938^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50657623) 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, 322582 + ... + 322738.

It is an arithmetic number, because the mean of its divisors is an integer number (1289043).

Almost surely, 2^50657620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50657620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61874064).

50657620 is an abundant number, since it is smaller than the sum of its proper divisors (73090508).

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

50657620 is a wasteful number, since it uses less digits than its factorization.

50657620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 50657620 is about 7117.4166661788. The cubic root of 50657620 is about 370.0112487449.

The spelling of 50657620 in words is "fifty million, six hundred fifty-seven thousand, six hundred twenty".