75408251825 has 24 divisors (see below), whose sum is σ = 95776631808. Its totient is φ = 58864639680.

The previous prime is 75408251813. The next prime is 75408251977. The reversal of 75408251825 is 52815280457.

It is not a de Polignac number, because 75408251825 - 2¹² = 75408247729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75408251825.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1054352 + ... + 1123598.

It is an arithmetic number, because the mean of its divisors is an integer number (3990692992).

Almost surely, 2^75408251825 is an apocalyptic number.

It is an amenable number.

75408251825 is a deficient number, since it is larger than the sum of its proper divisors (20368379983).

75408251825 is a wasteful number, since it uses less digits than its factorization.

75408251825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70313 (or 70308 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 47.

The spelling of 75408251825 in words is "seventy-five billion, four hundred eight million, two hundred fifty-one thousand, eight hundred twenty-five".