6289749425 has 6 divisors (see below), whose sum is σ = 7799289318. Its totient is φ = 5031799520.

The previous prime is 6289749421. The next prime is 6289749439. The reversal of 6289749425 is 5249479826.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2105341456 + 4184407969 = 45884^2 + 64687^2 .

It is not a de Polignac number, because 6289749425 - 2² = 6289749421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6289749421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125794964 + ... + 125795013.

It is an arithmetic number, because the mean of its divisors is an integer number (1299881553).

Almost surely, 2^6289749425 is an apocalyptic number.

It is an amenable number.

6289749425 is a deficient number, since it is larger than the sum of its proper divisors (1509539893).

6289749425 is a wasteful number, since it uses less digits than its factorization.

6289749425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251589987 (or 251589982 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The square root of 6289749425 is about 79307.9404914792. The cubic root of 6289749425 is about 1845.9125168311.

The spelling of 6289749425 in words is "six billion, two hundred eighty-nine million, seven hundred forty-nine thousand, four hundred twenty-five".