1363444725 has 48 divisors (see below), whose sum is σ = 2303763264. Its totient is φ = 711360000.

The previous prime is 1363444721. The next prime is 1363444729. The reversal of 1363444725 is 5274443631.

It is an interprime number because it is at equal distance from previous prime (1363444721) and next prime (1363444729).

It is not a de Polignac number, because 1363444725 - 2² = 1363444721 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363444721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 716275 + ... + 718175.

It is an arithmetic number, because the mean of its divisors is an integer number (47995068).

Almost surely, 2^1363444725 is an apocalyptic number.

1363444725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1363444725 is a deficient number, since it is larger than the sum of its proper divisors (940318539).

1363444725 is a wasteful number, since it uses less digits than its factorization.

1363444725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2113 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 1363444725 is about 36924.8524032257. The cubic root of 1363444725 is about 1108.8662842221.

The spelling of 1363444725 in words is "one billion, three hundred sixty-three million, four hundred forty-four thousand, seven hundred twenty-five".