62500009 has 12 divisors (see below), whose sum is σ = 73984708. Its totient is φ = 52446240.

The previous prime is 62500003. The next prime is 62500019. The reversal of 62500009 is 90000526.

It can be written as a sum of positive squares in 2 ways, for example, as 36336784 + 26163225 = 6028^2 + 5115^2 .

It is not a de Polignac number, because 62500009 - 2³ = 62500001 is a prime.

It is a super-2 number, since 2×62500009² = 7812502250000162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62500001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18294 + ... + 21439.

Almost surely, 2^62500009 is an apocalyptic number.

It is an amenable number.

62500009 is a deficient number, since it is larger than the sum of its proper divisors (11484699).

62500009 is a wasteful number, since it uses less digits than its factorization.

62500009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39768 (or 39757 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 62500009 is about 7905.6947196309. The cubic root of 62500009 is about 396.8502820409.

It can be divided in two parts, 6250000 and 9, that multiplied together give a square (56250000 = 7500²).

The spelling of 62500009 in words is "sixty-two million, five hundred thousand, nine".