13525401391 has 2 divisors, whose sum is σ = 13525401392. Its totient is φ = 13525401390.

The previous prime is 13525401377. The next prime is 13525401419. The reversal of 13525401391 is 19310452531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13525401391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525401301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762700695 + 6762700696.

It is an arithmetic number, because the mean of its divisors is an integer number (6762700696).

Almost surely, 2^13525401391 is an apocalyptic number.

13525401391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525401391 is an equidigital number, since it uses as much as digits as its factorization.

13525401391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 13525401391 in words is "thirteen billion, five hundred twenty-five million, four hundred one thousand, three hundred ninety-one".