75528004 has 12 divisors (see below), whose sum is σ = 134341228. Its totient is φ = 37144800.

The previous prime is 75527993. The next prime is 75528031. The reversal of 75528004 is 40082557.

It can be written as a sum of positive squares in 2 ways, for example, as 11560000 + 63968004 = 3400^2 + 7998^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154527 + ... + 155014.

Almost surely, 2^75528004 is an apocalyptic number.

It is an amenable number.

75528004 is a deficient number, since it is larger than the sum of its proper divisors (58813224).

75528004 is a wasteful number, since it uses less digits than its factorization.

75528004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309606 (or 309604 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 75528004 is about 8690.6848982114. The cubic root of 75528004 is about 422.7036544879.

The spelling of 75528004 in words is "seventy-five million, five hundred twenty-eight thousand, four".