75720022 has 8 divisors (see below), whose sum is σ = 129805776. Its totient is φ = 32451432.

The previous prime is 75720013. The next prime is 75720059. The reversal of 75720022 is 22002757.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704273 + ... + 2704300.

It is an arithmetic number, because the mean of its divisors is an integer number (16225722).

Almost surely, 2^75720022 is an apocalyptic number.

75720022 is a deficient number, since it is larger than the sum of its proper divisors (54085754).

75720022 is a wasteful number, since it uses less digits than its factorization.

75720022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408582.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 75720022 is about 8701.7252312401. The cubic root of 75720022 is about 423.0615703977.

Adding to 75720022 its reverse (22002757), we get a palindrome (97722779).

The spelling of 75720022 in words is "seventy-five million, seven hundred twenty thousand, twenty-two".