7500001625 has 8 divisors (see below), whose sum is σ = 9360002184. Its totient is φ = 6000001200.

The previous prime is 7500001577. The next prime is 7500001631. The reversal of 7500001625 is 5261000057.

It can be written as a sum of positive squares in 4 ways, for example, as 2255490064 + 5244511561 = 47492^2 + 72419^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7500001625 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7500001594 and 7500001603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29999882 + ... + 30000131.

It is an arithmetic number, because the mean of its divisors is an integer number (1170000273).

Almost surely, 2^7500001625 is an apocalyptic number.

It is an amenable number.

7500001625 is a deficient number, since it is larger than the sum of its proper divisors (1860000559).

7500001625 is an equidigital number, since it uses as much as digits as its factorization.

7500001625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000028 (or 60000018 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 7500001625 is about 86602.5497603852. The cubic root of 7500001625 is about 1957.4339619546.

The spelling of 7500001625 in words is "seven billion, five hundred million, one thousand, six hundred twenty-five".