67764225 has 24 divisors (see below), whose sum is σ = 113464960. Its totient is φ = 35680320.

The previous prime is 67764223. The next prime is 67764239. The reversal of 67764225 is 52246776.

It is a happy number.

It is not a de Polignac number, because 67764225 - 2¹ = 67764223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67764223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207 + ... + 11643.

It is a Proth number, since it is equal to 517 ⋅ 2¹⁷ + 1 and 517 < 2¹⁷.

Almost surely, 2^67764225 is an apocalyptic number.

It is an amenable number.

67764225 is a deficient number, since it is larger than the sum of its proper divisors (45700735).

67764225 is a wasteful number, since it uses less digits than its factorization.

67764225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529 (or 11524 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 67764225 is about 8231.9028784358. The cubic root of 67764225 is about 407.6932226294.

The spelling of 67764225 in words is "sixty-seven million, seven hundred sixty-four thousand, two hundred twenty-five".