7172050385 has 4 divisors (see below), whose sum is σ = 8606460468. Its totient is φ = 5737640304.

The previous prime is 7172050357. The next prime is 7172050409. The reversal of 7172050385 is 5830502717.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3455441089 + 3716609296 = 58783^2 + 60964^2 .

It is a cyclic number.

It is not a de Polignac number, because 7172050385 - 2⁸ = 7172050129 is a prime.

It is a Duffinian 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, 717205034 + ... + 717205043.

It is an arithmetic number, because the mean of its divisors is an integer number (2151615117).

Almost surely, 2^7172050385 is an apocalyptic number.

It is an amenable number.

7172050385 is a deficient number, since it is larger than the sum of its proper divisors (1434410083).

7172050385 is a wasteful number, since it uses less digits than its factorization.

7172050385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434410082.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 7172050385 is about 84687.9589138857. The cubic root of 7172050385 is about 1928.4769127513.

The spelling of 7172050385 in words is "seven billion, one hundred seventy-two million, fifty thousand, three hundred eighty-five".