68520026 has 4 divisors (see below), whose sum is σ = 102780042. Its totient is φ = 34260012.

The previous prime is 68520007. The next prime is 68520037. The reversal of 68520026 is 62002586.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56235001 + 12285025 = 7499^2 + 3505^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17130005 + ... + 17130008.

Almost surely, 2^68520026 is an apocalyptic number.

68520026 is a deficient number, since it is larger than the sum of its proper divisors (34260016).

68520026 is a wasteful number, since it uses less digits than its factorization.

68520026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34260015.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 68520026 is about 8277.6824051180. The cubic root of 68520026 is about 409.2033429920.

The spelling of 68520026 in words is "sixty-eight million, five hundred twenty thousand, twenty-six".