75223957 has 8 divisors (see below), whose sum is σ = 76296600. Its totient is φ = 74156544.

The previous prime is 75223943. The next prime is 75223969. The reversal of 75223957 is 75932257.

It can be written as a sum of positive squares in 4 ways, for example, as 2531281 + 72692676 = 1591^2 + 8526^2 .

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-75223957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75223157) 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, 34269 + ... + 36397.

It is an arithmetic number, because the mean of its divisors is an integer number (9537075).

Almost surely, 2^75223957 is an apocalyptic number.

It is an amenable number.

75223957 is a deficient number, since it is larger than the sum of its proper divisors (1072643).

75223957 is a wasteful number, since it uses less digits than its factorization.

75223957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615.

The product of its digits is 132300, while the sum is 40.

The square root of 75223957 is about 8673.1745629844. The cubic root of 75223957 is about 422.1356769702.

The spelling of 75223957 in words is "seventy-five million, two hundred twenty-three thousand, nine hundred fifty-seven".