1264554625 has 8 divisors (see below), whose sum is σ = 1578164328. Its totient is φ = 1011643600.

The previous prime is 1264554619. The next prime is 1264554647. The reversal of 1264554625 is 5264554621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 322310209 + 942244416 = 17953^2 + 30696^2 .

It is not a de Polignac number, because 1264554625 - 2³ = 1264554617 is a prime.

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, 5058094 + ... + 5058343.

It is an arithmetic number, because the mean of its divisors is an integer number (197270541).

Almost surely, 2^1264554625 is an apocalyptic number.

It is an amenable number.

1264554625 is a deficient number, since it is larger than the sum of its proper divisors (313609703).

1264554625 is an equidigital number, since it uses as much as digits as its factorization.

1264554625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116452 (or 10116442 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 1264554625 is about 35560.5768372787. The cubic root of 1264554625 is about 1081.3821538717.

The spelling of 1264554625 in words is "one billion, two hundred sixty-four million, five hundred fifty-four thousand, six hundred twenty-five".