725221347703 has 2 divisors, whose sum is σ = 725221347704. Its totient is φ = 725221347702.

The previous prime is 725221347701. The next prime is 725221347769. The reversal of 725221347703 is 307743122527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725221347703 - 2¹ = 725221347701 is a prime.

Together with 725221347701, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 725221347703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725221347701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362610673851 + 362610673852.

It is an arithmetic number, because the mean of its divisors is an integer number (362610673852).

Almost surely, 2^725221347703 is an apocalyptic number.

725221347703 is a deficient number, since it is larger than the sum of its proper divisors (1).

725221347703 is an equidigital number, since it uses as much as digits as its factorization.

725221347703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 725221347703 in words is "seven hundred twenty-five billion, two hundred twenty-one million, three hundred forty-seven thousand, seven hundred three".