725245542527 has 4 divisors (see below), whose sum is σ = 791176955496. Its totient is φ = 659314129560.

The previous prime is 725245542503. The next prime is 725245542649.

725245542527 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725245542527 - 2¹⁴ = 725245526143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725245542127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32965706468 + ... + 32965706489.

It is an arithmetic number, because the mean of its divisors is an integer number (197794238874).

Almost surely, 2^725245542527 is an apocalyptic number.

725245542527 is a deficient number, since it is larger than the sum of its proper divisors (65931412969).

725245542527 is a wasteful number, since it uses less digits than its factorization.

725245542527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65931412968.

The product of its digits is 7840000, while the sum is 50.

The spelling of 725245542527 in words is "seven hundred twenty-five billion, two hundred forty-five million, five hundred forty-two thousand, five hundred twenty-seven".