68625506 has 16 divisors (see below), whose sum is σ = 108734208. Its totient is φ = 32432400.

The previous prime is 68625503. The next prime is 68625509. The reversal of 68625506 is 60552686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68625503) and next prime (68625509).

It is a self number, because there is not a number n which added to its sum of digits gives 68625506.

It is not an unprimeable number, because it can be changed into a prime (68625503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10205 + ... + 15536.

It is an arithmetic number, because the mean of its divisors is an integer number (6795888).

Almost surely, 2^68625506 is an apocalyptic number.

68625506 is a deficient number, since it is larger than the sum of its proper divisors (40108702).

68625506 is a wasteful number, since it uses less digits than its factorization.

68625506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25817.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 68625506 is about 8284.0513035591. The cubic root of 68625506 is about 409.4132117547.

The spelling of 68625506 in words is "sixty-eight million, six hundred twenty-five thousand, five hundred six".