50206690 has 8 divisors (see below), whose sum is σ = 90372060. Its totient is φ = 20082672.

The previous prime is 50206687. The next prime is 50206693. The reversal of 50206690 is 9660205.

It is an interprime number because it is at equal distance from previous prime (50206687) and next prime (50206693).

It can be written as a sum of positive squares in 2 ways, for example, as 41486481 + 8720209 = 6441^2 + 2953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×50206690² = 5041423441512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50206693) 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, 2510325 + ... + 2510344.

Almost surely, 2^50206690 is an apocalyptic number.

50206690 is a deficient number, since it is larger than the sum of its proper divisors (40165370).

50206690 is a wasteful number, since it uses less digits than its factorization.

50206690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020676.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 50206690 is about 7085.6679289958. The cubic root of 50206690 is about 368.9100869592.

Adding to 50206690 its reverse (9660205), we get a palindrome (59866895).

The spelling of 50206690 in words is "fifty million, two hundred six thousand, six hundred ninety".