50730690 has 16 divisors (see below), whose sum is σ = 121753728. Its totient is φ = 13528176.

The previous prime is 50730683. The next prime is 50730697. The reversal of 50730690 is 9603705.

It is an interprime number because it is at equal distance from previous prime (50730683) and next prime (50730697).

It is a super-2 number, since 2×50730690² = 5147205815752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1691023 = 50730690 / (5 + 0 + 7 + 3 + 0 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (50730697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845482 + ... + 845541.

It is an arithmetic number, because the mean of its divisors is an integer number (7609608).

Almost surely, 2^50730690 is an apocalyptic number.

50730690 is an abundant number, since it is smaller than the sum of its proper divisors (71023038).

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

50730690 is a wasteful number, since it uses less digits than its factorization.

50730690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691033.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 50730690 is about 7122.5479991363. The cubic root of 50730690 is about 370.1890682111.

The spelling of 50730690 in words is "fifty million, seven hundred thirty thousand, six hundred ninety".