7513221255701 has 16 divisors (see below), whose sum is σ = 8754132409344. Its totient is φ = 6314363662464.

The previous prime is 7513221255697. The next prime is 7513221255719. The reversal of 7513221255701 is 1075521223157.

It is a cyclic number.

It is not a de Polignac number, because 7513221255701 - 2² = 7513221255697 is a prime.

It is a super-2 number, since 2×7513221255701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7513221255301) 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, 5880440 + ... + 7043153.

It is an arithmetic number, because the mean of its divisors is an integer number (547133275584).

Almost surely, 2^{7513221255701} is an apocalyptic number.

It is an amenable number.

7513221255701 is a deficient number, since it is larger than the sum of its proper divisors (1240911153643).

7513221255701 is a wasteful number, since it uses less digits than its factorization.

7513221255701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925220.

The product of its (nonzero) digits is 147000, while the sum is 41.

Adding to 7513221255701 its reverse (1075521223157), we get a palindrome (8588742478858).

The spelling of 7513221255701 in words is "seven trillion, five hundred thirteen billion, two hundred twenty-one million, two hundred fifty-five thousand, seven hundred one".