75165630 has 32 divisors (see below), whose sum is σ = 182577024. Its totient is φ = 19802016.

The previous prime is 75165599. The next prime is 75165631. The reversal of 75165630 is 3656157.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75165591 and 75165600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75165631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12604 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (5705532).

Almost surely, 2^75165630 is an apocalyptic number.

75165630 is an abundant number, since it is smaller than the sum of its proper divisors (107411394).

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

75165630 is a wasteful number, since it uses less digits than its factorization.

75165630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30280.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 75165630 is about 8669.8114166342. The cubic root of 75165630 is about 422.0265438557.

The spelling of 75165630 in words is "seventy-five million, one hundred sixty-five thousand, six hundred thirty".