67424225 has 36 divisors (see below), whose sum is σ = 94993920. Its totient is φ = 47388000.

The previous prime is 67424219. The next prime is 67424233. The reversal of 67424225 is 52242476.

It is not a de Polignac number, because 67424225 - 2⁸ = 67423969 is a prime.

It is a super-2 number, since 2×67424225² = 9092052233701250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67424191 and 67424200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93416 + ... + 94134.

It is an arithmetic number, because the mean of its divisors is an integer number (2638720).

Almost surely, 2^67424225 is an apocalyptic number.

It is an amenable number.

67424225 is a deficient number, since it is larger than the sum of its proper divisors (27569695).

67424225 is a wasteful number, since it uses less digits than its factorization.

67424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 766 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 67424225 is about 8211.2255479922. The cubic root of 67424225 is about 407.0102261857.

The spelling of 67424225 in words is "sixty-seven million, four hundred twenty-four thousand, two hundred twenty-five".