75903012 has 36 divisors (see below), whose sum is σ = 192710700. Its totient is φ = 25189632.

The previous prime is 75902999. The next prime is 75903017. The reversal of 75903012 is 21030957.

It can be written as a sum of positive squares in 2 ways, for example, as 39614436 + 36288576 = 6294^2 + 6024^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×75903012² = 11522534461344288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75903017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3864 + ... + 12912.

It is an arithmetic number, because the mean of its divisors is an integer number (5353075).

Almost surely, 2^75903012 is an apocalyptic number.

It is an amenable number.

75903012 is an abundant number, since it is smaller than the sum of its proper divisors (116807688).

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

75903012 is a wasteful number, since it uses less digits than its factorization.

75903012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9292 (or 9287 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 75903012 is about 8712.2334679461. The cubic root of 75903012 is about 423.4020957323.

Adding to 75903012 its reverse (21030957), we get a palindrome (96933969).

The spelling of 75903012 in words is "seventy-five million, nine hundred three thousand, twelve".