75490655 has 8 divisors (see below), whose sum is σ = 90636000. Its totient is φ = 60361056.

The previous prime is 75490643. The next prime is 75490661. The reversal of 75490655 is 55609457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75490655 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14321 + ... + 18869.

It is an arithmetic number, because the mean of its divisors is an integer number (11329500).

Almost surely, 2^75490655 is an apocalyptic number.

75490655 is a deficient number, since it is larger than the sum of its proper divisors (15145345).

75490655 is a wasteful number, since it uses less digits than its factorization.

75490655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 75490655 is about 8688.5358375275. The cubic root of 75490655 is about 422.6339665973.

The spelling of 75490655 in words is "seventy-five million, four hundred ninety thousand, six hundred fifty-five".