7499001625 has 8 divisors (see below), whose sum is σ = 9358754184. Its totient is φ = 5999201200.

The previous prime is 7499001619. The next prime is 7499001647. The reversal of 7499001625 is 5261009947.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 883456729 + 6615544896 = 29723^2 + 81336^2 .

It is not a de Polignac number, because 7499001625 - 2³ = 7499001617 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 29995882 + ... + 29996131.

It is an arithmetic number, because the mean of its divisors is an integer number (1169844273).

Almost surely, 2^7499001625 is an apocalyptic number.

It is an amenable number.

7499001625 is a deficient number, since it is larger than the sum of its proper divisors (1859752559).

7499001625 is an equidigital number, since it uses as much as digits as its factorization.

7499001625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59992028 (or 59992018 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 7499001625 is about 86596.7760658559. The cubic root of 7499001625 is about 1957.3469610417.

The spelling of 7499001625 in words is "seven billion, four hundred ninety-nine million, one thousand, six hundred twenty-five".