68252535 has 48 divisors (see below), whose sum is σ = 134918784. Its totient is φ = 31620096.

The previous prime is 68252533. The next prime is 68252539. The reversal of 68252535 is 53525286.

It is a happy number.

It is not a de Polignac number, because 68252535 - 2¹ = 68252533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68252535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68252533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6514 + ... + 13376.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 2^68252535 is an apocalyptic number.

68252535 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68252535 is a deficient number, since it is larger than the sum of its proper divisors (66666249).

68252535 is a wasteful number, since it uses less digits than its factorization.

68252535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904 (or 6901 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 68252535 is about 8261.5092446840. The cubic root of 68252535 is about 408.6701608787.

The spelling of 68252535 in words is "sixty-eight million, two hundred fifty-two thousand, five hundred thirty-five".