72050071 has 4 divisors (see below), whose sum is σ = 75842200. Its totient is φ = 68257944.

The previous prime is 72050057. The next prime is 72050087. The reversal of 72050071 is 17005027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72050071 - 2⁹ = 72049559 is a prime.

It is a super-2 number, since 2×72050071² = 10382425462210082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72050371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896036 + ... + 1896073.

It is an arithmetic number, because the mean of its divisors is an integer number (18960550).

Almost surely, 2^72050071 is an apocalyptic number.

72050071 is a deficient number, since it is larger than the sum of its proper divisors (3792129).

72050071 is a wasteful number, since it uses less digits than its factorization.

72050071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792128.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 72050071 is about 8488.2313234266. The cubic root of 72050071 is about 416.1131791872.

Adding to 72050071 its reverse (17005027), we get a palindrome (89055098).

The spelling of 72050071 in words is "seventy-two million, fifty thousand, seventy-one".