1325563401 has 16 divisors (see below), whose sum is σ = 1792482048. Its totient is φ = 871256400.

The previous prime is 1325563399. The next prime is 1325563409. The reversal of 1325563401 is 1043655231.

It is not a de Polignac number, because 1325563401 - 2¹ = 1325563399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325563409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57946 + ... + 77516.

It is an arithmetic number, because the mean of its divisors is an integer number (112030128).

Almost surely, 2^1325563401 is an apocalyptic number.

It is an amenable number.

1325563401 is a deficient number, since it is larger than the sum of its proper divisors (466918647).

1325563401 is a wasteful number, since it uses less digits than its factorization.

1325563401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19892.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1325563401 is about 36408.2875318244. The cubic root of 1325563401 is about 1098.5002705375.

The spelling of 1325563401 in words is "one billion, three hundred twenty-five million, five hundred sixty-three thousand, four hundred one".