75750078 has 16 divisors (see below), whose sum is σ = 151592976. Its totient is φ = 25234560.

The previous prime is 75750071. The next prime is 75750097. The reversal of 75750078 is 87005757.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75750071) 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, 11350 + ... + 16742.

It is an arithmetic number, because the mean of its divisors is an integer number (9474561).

Almost surely, 2^75750078 is an apocalyptic number.

75750078 is an abundant number, since it is smaller than the sum of its proper divisors (75842898).

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

75750078 is a wasteful number, since it uses less digits than its factorization.

75750078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7739.

The product of its (nonzero) digits is 68600, while the sum is 39.

The square root of 75750078 is about 8703.4520737464. The cubic root of 75750078 is about 423.1175391106.

The spelling of 75750078 in words is "seventy-five million, seven hundred fifty thousand, seventy-eight".