75063720 has 64 divisors (see below), whose sum is σ = 234990720. Its totient is φ = 19145984.

The previous prime is 75063673. The next prime is 75063739. The reversal of 75063720 is 2736057.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10839 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (3671730).

Almost surely, 2^75063720 is an apocalyptic number.

It is an amenable number.

75063720 is an abundant number, since it is smaller than the sum of its proper divisors (159927000).

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

75063720 is a wasteful number, since it uses less digits than its factorization.

75063720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27234 (or 27230 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 75063720 is about 8663.9321326982. The cubic root of 75063720 is about 421.8357289096.

Adding to 75063720 its reverse (2736057), we get a palindrome (77799777).

The spelling of 75063720 in words is "seventy-five million, sixty-three thousand, seven hundred twenty".