75125312 has 56 divisors (see below), whose sum is σ = 163357560. Its totient is φ = 34119680.

The previous prime is 75125311. The next prime is 75125339. The reversal of 75125312 is 21352157.

It can be written as a sum of positive squares in 4 ways, for example, as 2262016 + 72863296 = 1504^2 + 8536^2 .

It is not an unprimeable number, because it can be changed into a prime (75125311) 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, 30362 + ... + 32742.

Almost surely, 2^75125312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75125312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81678780).

75125312 is an abundant number, since it is smaller than the sum of its proper divisors (88232248).

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

75125312 is a wasteful number, since it uses less digits than its factorization.

75125312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2429 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 75125312 is about 8667.4859099972. The cubic root of 75125312 is about 421.9510735937.

Adding to 75125312 its reverse (21352157), we get a palindrome (96477469).

The spelling of 75125312 in words is "seventy-five million, one hundred twenty-five thousand, three hundred twelve".