5120020450 has 48 divisors (see below), whose sum is σ = 9841870080. Its totient is φ = 1979640000.

The previous prime is 5120020439. The next prime is 5120020457. The reversal of 5120020450 is 540200215.

It is not an unprimeable number, because it can be changed into a prime (5120020457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2015281 + ... + 2017819.

It is an arithmetic number, because the mean of its divisors is an integer number (205038960).

Almost surely, 2^5120020450 is an apocalyptic number.

5120020450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5120020450 is a deficient number, since it is larger than the sum of its proper divisors (4721849630).

5120020450 is a wasteful number, since it uses less digits than its factorization.

5120020450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883 (or 3878 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5120020450 is about 71554.3181785698. The cubic root of 5120020450 is about 1723.5500467198.

Adding to 5120020450 its reverse (540200215), we get a palindrome (5660220665).

The spelling of 5120020450 in words is "five billion, one hundred twenty million, twenty thousand, four hundred fifty".