75458725 has 36 divisors (see below), whose sum is σ = 100551724. Its totient is φ = 56125440.

The previous prime is 75458711. The next prime is 75458749. The reversal of 75458725 is 52785457.

It can be written as a sum of positive squares in 18 ways, for example, as 31382404 + 44076321 = 5602^2 + 6639^2 .

It is not a de Polignac number, because 75458725 - 2⁵ = 75458693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 777877 + ... + 777973.

Almost surely, 2^75458725 is an apocalyptic number.

It is an amenable number.

75458725 is a deficient number, since it is larger than the sum of its proper divisors (25092999).

75458725 is a wasteful number, since it uses less digits than its factorization.

75458725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 168 counting only the distinct ones).

The product of its digits is 392000, while the sum is 43.

The square root of 75458725 is about 8686.6981644351. The cubic root of 75458725 is about 422.5743715582.

The spelling of 75458725 in words is "seventy-five million, four hundred fifty-eight thousand, seven hundred twenty-five".