50490000 has 400 divisors, whose sum is σ = 209183040. Its totient is φ = 11520000.

The previous prime is 50489987. The next prime is 50490019. The reversal of 50490000 is 9405.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-3 number, since 3×50490000³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2969992 + ... + 2970008.

Almost surely, 2^50490000 is an apocalyptic number.

50490000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50490000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104591520).

50490000 is an abundant number, since it is smaller than the sum of its proper divisors (158693040).

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

50490000 is a wasteful number, since it uses less digits than its factorization.

50490000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 50490000 is about 7105.6315693962. The cubic root of 50490000 is about 369.6026901474.

Adding to 50490000 its reverse (9405), we get a palindrome (50499405).

The spelling of 50490000 in words is "fifty million, four hundred ninety thousand".