5425297067521 has 16 divisors (see below), whose sum is σ = 5450702241600. Its totient is φ = 5399963712000.

The previous prime is 5425297067483. The next prime is 5425297067543. The reversal of 5425297067521 is 1257607925245.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5425297067521 - 2⁹ = 5425297067009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5425297067581) 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, 391456890 + ... + 391470748.

It is an arithmetic number, because the mean of its divisors is an integer number (340668890100).

Almost surely, 2^{5425297067521} is an apocalyptic number.

It is an amenable number.

5425297067521 is a deficient number, since it is larger than the sum of its proper divisors (25405174079).

5425297067521 is a wasteful number, since it uses less digits than its factorization.

5425297067521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16320.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 5425297067521 in words is "five trillion, four hundred twenty-five billion, two hundred ninety-seven million, sixty-seven thousand, five hundred twenty-one".