7513422401 has 4 divisors (see below), whose sum is σ = 7554933204. Its totient is φ = 7471911600.

The previous prime is 7513422383. The next prime is 7513422409. The reversal of 7513422401 is 1042243157.

It is a Cunningham number, because it is equal to 86680²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82810000 + 7430612401 = 9100^2 + 86201^2 .

It is a cyclic number.

It is not a de Polignac number, because 7513422401 - 2⁶ = 7513422337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7513422409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20755130 + ... + 20755491.

It is an arithmetic number, because the mean of its divisors is an integer number (1888733301).

Almost surely, 2^7513422401 is an apocalyptic number.

It is an amenable number.

7513422401 is a deficient number, since it is larger than the sum of its proper divisors (41510803).

7513422401 is a wasteful number, since it uses less digits than its factorization.

7513422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41510802.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 7513422401 is about 86680.0000057683. Note that the first 5 decimals coincide. The cubic root of 7513422401 is about 1958.6008340854.

Adding to 7513422401 its reverse (1042243157), we get a palindrome (8555665558).

The spelling of 7513422401 in words is "seven billion, five hundred thirteen million, four hundred twenty-two thousand, four hundred one".