67172053 has 4 divisors (see below), whose sum is σ = 72339148. Its totient is φ = 62004960.

The previous prime is 67172051. The next prime is 67172069. The reversal of 67172053 is 35027176.

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 4334724 + 62837329 = 2082^2 + 7927^2 .

It is a cyclic number.

It is not a de Polignac number, because 67172053 - 2¹ = 67172051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67172051) 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, 2583528 + ... + 2583553.

It is an arithmetic number, because the mean of its divisors is an integer number (18084787).

Almost surely, 2^67172053 is an apocalyptic number.

It is an amenable number.

67172053 is a deficient number, since it is larger than the sum of its proper divisors (5167095).

67172053 is a wasteful number, since it uses less digits than its factorization.

67172053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167094.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 67172053 is about 8195.8558430465. The cubic root of 67172053 is about 406.5021753299.

The spelling of 67172053 in words is "sixty-seven million, one hundred seventy-two thousand, fifty-three".