67613825 has 6 divisors (see below), whose sum is σ = 83841174. Its totient is φ = 54091040.

The previous prime is 67613801. The next prime is 67613827. The reversal of 67613825 is 52831676.

It can be written as a sum of positive squares in 3 ways, for example, as 913936 + 66699889 = 956^2 + 8167^2 .

It is a de Polignac number, because none of the positive numbers 2^k-67613825 is a prime.

It is a super-2 number, since 2×67613825² = 9143258662261250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67613827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1352252 + ... + 1352301.

It is an arithmetic number, because the mean of its divisors is an integer number (13973529).

Almost surely, 2^67613825 is an apocalyptic number.

It is an amenable number.

67613825 is a deficient number, since it is larger than the sum of its proper divisors (16227349).

67613825 is a wasteful number, since it uses less digits than its factorization.

67613825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704563 (or 2704558 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 67613825 is about 8222.7626136232. The cubic root of 67613825 is about 407.3913795832.

The spelling of 67613825 in words is "sixty-seven million, six hundred thirteen thousand, eight hundred twenty-five".