72055574 has 8 divisors (see below), whose sum is σ = 108514728. Its totient is φ = 35884000.

The previous prime is 72055549. The next prime is 72055583. The reversal of 72055574 is 47555027.

It is a happy number.

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, 71267 + ... + 72270.

It is an arithmetic number, because the mean of its divisors is an integer number (13564341).

Almost surely, 2^72055574 is an apocalyptic number.

72055574 is a deficient number, since it is larger than the sum of its proper divisors (36459154).

72055574 is a wasteful number, since it uses less digits than its factorization.

72055574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143790.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 72055574 is about 8488.5554719281. Note that the first 3 decimals coincide. The cubic root of 72055574 is about 416.1237728040.

The spelling of 72055574 in words is "seventy-two million, fifty-five thousand, five hundred seventy-four".