68507504 has 40 divisors (see below), whose sum is σ = 143532480. Its totient is φ = 31488768.

The previous prime is 68507477. The next prime is 68507513. The reversal of 68507504 is 40570586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65417 + ... + 66455.

It is an arithmetic number, because the mean of its divisors is an integer number (3588312).

Almost surely, 2^68507504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68507504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71766240).

68507504 is an abundant number, since it is smaller than the sum of its proper divisors (75024976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68507504 is a wasteful number, since it uses less digits than its factorization.

68507504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 68507504 is about 8276.9259994276. The cubic root of 68507504 is about 409.1784142389.

The spelling of 68507504 in words is "sixty-eight million, five hundred seven thousand, five hundred four".