67521052 has 6 divisors (see below), whose sum is σ = 118161848. Its totient is φ = 33760524.

The previous prime is 67521049. The next prime is 67521053. The reversal of 67521052 is 25012576.

It is a self number, because there is not a number n which added to its sum of digits gives 67521052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67521053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440128 + ... + 8440135.

Almost surely, 2^67521052 is an apocalyptic number.

It is an amenable number.

67521052 is a deficient number, since it is larger than the sum of its proper divisors (50640796).

67521052 is a wasteful number, since it uses less digits than its factorization.

67521052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16880267 (or 16880265 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 67521052 is about 8217.1194466187. The cubic root of 67521052 is about 407.2049669189.

The spelling of 67521052 in words is "sixty-seven million, five hundred twenty-one thousand, fifty-two".