75420653 has 24 divisors (see below), whose sum is σ = 101352384. Its totient is φ = 55305600.

The previous prime is 75420649. The next prime is 75420659. The reversal of 75420653 is 35602457.

It is not a de Polignac number, because 75420653 - 2² = 75420649 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75420659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5048 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (4223016).

Almost surely, 2^75420653 is an apocalyptic number.

It is an amenable number.

75420653 is a deficient number, since it is larger than the sum of its proper divisors (25931731).

75420653 is a wasteful number, since it uses less digits than its factorization.

75420653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273 (or 8266 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 75420653 is about 8684.5064914479. The cubic root of 75420653 is about 422.5032909422.

The spelling of 75420653 in words is "seventy-five million, four hundred twenty thousand, six hundred fifty-three".