50402069 has 4 divisors (see below), whose sum is σ = 50598444. Its totient is φ = 50205696.

The previous prime is 50402021. The next prime is 50402083. The reversal of 50402069 is 96020405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44823025 + 5579044 = 6695^2 + 2362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50402069 is a prime.

It is a super-2 number, since 2×50402069² = 5080737118961522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50452069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97802 + ... + 98315.

It is an arithmetic number, because the mean of its divisors is an integer number (12649611).

Almost surely, 2^50402069 is an apocalyptic number.

It is an amenable number.

50402069 is a deficient number, since it is larger than the sum of its proper divisors (196375).

50402069 is a wasteful number, since it uses less digits than its factorization.

50402069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196374.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 50402069 is about 7099.4414569035. The cubic root of 50402069 is about 369.3880046059.

The spelling of 50402069 in words is "fifty million, four hundred two thousand, sixty-nine".