1304220025 has 24 divisors (see below), whose sum is σ = 1744703064. Its totient is φ = 963456000.

The previous prime is 1304220017. The next prime is 1304220053. The reversal of 1304220025 is 5200224031.

It can be written as a sum of positive squares in 12 ways, for example, as 227527056 + 1076692969 = 15084^2 + 32813^2 .

It is not a de Polignac number, because 1304220025 - 2³ = 1304220017 is a prime.

It is a super-2 number, since 2×1304220025² = 3401979747222001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304219984 and 1304220011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6426 + ... + 51475.

It is an arithmetic number, because the mean of its divisors is an integer number (72695961).

Almost surely, 2^1304220025 is an apocalyptic number.

It is an amenable number.

1304220025 is a deficient number, since it is larger than the sum of its proper divisors (440483039).

1304220025 is a wasteful number, since it uses less digits than its factorization.

1304220025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57981 (or 57976 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1304220025 is about 36113.9865564576. The cubic root of 1304220025 is about 1092.5725575690.

Adding to 1304220025 its reverse (5200224031), we get a palindrome (6504444056).

The spelling of 1304220025 in words is "one billion, three hundred four million, two hundred twenty thousand, twenty-five".