75252813 has 16 divisors (see below), whose sum is σ = 101531136. Its totient is φ = 49575600.

The previous prime is 75252811. The next prime is 75252817. The reversal of 75252813 is 31825257.

It is not a de Polignac number, because 75252813 - 2¹ = 75252811 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 (75252811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127906 + ... + 128492.

It is an arithmetic number, because the mean of its divisors is an integer number (6345696).

Almost surely, 2^75252813 is an apocalyptic number.

It is an amenable number.

75252813 is a deficient number, since it is larger than the sum of its proper divisors (26278323).

75252813 is a wasteful number, since it uses less digits than its factorization.

75252813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024.

The product of its digits is 16800, while the sum is 33.

The square root of 75252813 is about 8674.8379235580. The cubic root of 75252813 is about 422.1896473202.

The spelling of 75252813 in words is "seventy-five million, two hundred fifty-two thousand, eight hundred thirteen".