1064777625 has 24 divisors (see below), whose sum is σ = 1919441160. Its totient is φ = 567880800.

The previous prime is 1064777603. The next prime is 1064777627. The reversal of 1064777625 is 5267774601.

1064777625 is a `hidden beast` number, since 10 + 6 + 4 + 7 + 7 + 7 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 974169 + 1063803456 = 987^2 + 32616^2 .

It is not a de Polignac number, because 1064777625 - 2¹⁷ = 1064646553 is a prime.

It is a super-2 number, since 2×1064777625² = 2267502781401281250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1064777627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472110 + ... + 474359.

It is an arithmetic number, because the mean of its divisors is an integer number (79976715).

Almost surely, 2^1064777625 is an apocalyptic number.

1064777625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1064777625 is a deficient number, since it is larger than the sum of its proper divisors (854663535).

1064777625 is an equidigital number, since it uses as much as digits as its factorization.

1064777625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946490 (or 946477 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 1064777625 is about 32630.9304954670. The cubic root of 1064777625 is about 1021.1423907586.

The spelling of 1064777625 in words is "one billion, sixty-four million, seven hundred seventy-seven thousand, six hundred twenty-five".