75200020 has 24 divisors (see below), whose sum is σ = 180480384. Its totient is φ = 25782816.

The previous prime is 75200003. The next prime is 75200023. The reversal of 75200020 is 2000257.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 75199967 and 75200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75200023) 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, 268432 + ... + 268711.

It is an arithmetic number, because the mean of its divisors is an integer number (7520016).

Almost surely, 2^75200020 is an apocalyptic number.

75200020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75200020 is an abundant number, since it is smaller than the sum of its proper divisors (105280364).

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

75200020 is a wasteful number, since it uses less digits than its factorization.

75200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537159 (or 537157 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 75200020 is about 8671.7945086355. The cubic root of 75200020 is about 422.0908963174.

Adding to 75200020 its reverse (2000257), we get a palindrome (77200277).

The spelling of 75200020 in words is "seventy-five million, two hundred thousand, twenty".