1648367225 has 6 divisors (see below), whose sum is σ = 2043975390. Its totient is φ = 1318693760.

The previous prime is 1648367213. The next prime is 1648367251. The reversal of 1648367225 is 5227638461.

It can be written as a sum of positive squares in 3 ways, for example, as 590101264 + 1058265961 = 24292^2 + 32531^2 .

It is not a de Polignac number, because 1648367225 - 2¹⁰ = 1648366201 is a prime.

It is a super-2 number, since 2×1648367225² = 5434229016908401250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32967320 + ... + 32967369.

It is an arithmetic number, because the mean of its divisors is an integer number (340662565).

Almost surely, 2^1648367225 is an apocalyptic number.

It is an amenable number.

1648367225 is a deficient number, since it is larger than the sum of its proper divisors (395608165).

1648367225 is an equidigital number, since it uses as much as digits as its factorization.

1648367225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65934699 (or 65934694 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 1648367225 is about 40600.0889777350. The cubic root of 1648367225 is about 1181.2758452022.

It can be divided in two parts, 164836 and 7225, that multiplied together give a square (1190940100 = 34510²).

The spelling of 1648367225 in words is "one billion, six hundred forty-eight million, three hundred sixty-seven thousand, two hundred twenty-five".