68252515 has 16 divisors (see below), whose sum is σ = 85017600. Its totient is φ = 52538752.

The previous prime is 68252461. The next prime is 68252533. The reversal of 68252515 is 51525286.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68252515 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54921 + ... + 56149.

It is an arithmetic number, because the mean of its divisors is an integer number (5313600).

Almost surely, 2^68252515 is an apocalyptic number.

68252515 is a deficient number, since it is larger than the sum of its proper divisors (16765085).

68252515 is a wasteful number, since it uses less digits than its factorization.

68252515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its digits is 24000, while the sum is 34.

The square root of 68252515 is about 8261.5080342514. The cubic root of 68252515 is about 408.6701209612.

The spelling of 68252515 in words is "sixty-eight million, two hundred fifty-two thousand, five hundred fifteen".