50657145 has 64 divisors (see below), whose sum is σ = 102850560. Its totient is φ = 20678400.

The previous prime is 50657143. The next prime is 50657197. The reversal of 50657145 is 54175605.

50657145 is a nontrivial binomial coefficient, being equal to C(10066, 2).

It is not a de Polignac number, because 50657145 - 2¹ = 50657143 is a prime.

It is a super-2 number, since 2×50657145² = 5132292679102050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (50657143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70096 + ... + 70814.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^50657145 is an apocalyptic number.

50657145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50657145 is the 10065-th triangular number and also the 5033-rd hexagonal number.

It is an amenable number.

50657145 is an abundant number, since it is smaller than the sum of its proper divisors (52193415).

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

50657145 is a wasteful number, since it uses less digits than its factorization.

50657145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 50657145 is about 7117.3832972519. The cubic root of 50657145 is about 370.0100922497.

The spelling of 50657145 in words is "fifty million, six hundred fifty-seven thousand, one hundred forty-five".