75425527 has 4 divisors (see below), whose sum is σ = 77265216. Its totient is φ = 73585840.

The previous prime is 75425521. The next prime is 75425543. The reversal of 75425527 is 72552457.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75425527 - 2¹¹ = 75423479 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 (75425521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919783 + ... + 919864.

It is an arithmetic number, because the mean of its divisors is an integer number (19316304).

Almost surely, 2^75425527 is an apocalyptic number.

75425527 is a deficient number, since it is larger than the sum of its proper divisors (1839689).

75425527 is a wasteful number, since it uses less digits than its factorization.

75425527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839688.

The product of its digits is 98000, while the sum is 37.

The square root of 75425527 is about 8684.7871015932. The cubic root of 75425527 is about 422.5123920598.

The spelling of 75425527 in words is "seventy-five million, four hundred twenty-five thousand, five hundred twenty-seven".