71425052417 has 4 divisors (see below), whose sum is σ = 71492245440. Its totient is φ = 71357859396.

The previous prime is 71425052411. The next prime is 71425052423.

It is a happy number.

71425052417 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (71425052411) and next prime (71425052423).

It is a cyclic number.

It is not a de Polignac number, because 71425052417 - 2⁴ = 71425052401 is a prime.

It is a super-2 number, since 2×71425052417² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71425052411) 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, 33594917 + ... + 33597042.

It is an arithmetic number, because the mean of its divisors is an integer number (17873061360).

Almost surely, 2^71425052417 is an apocalyptic number.

It is an amenable number.

71425052417 is a deficient number, since it is larger than the sum of its proper divisors (67193023).

71425052417 is a wasteful number, since it uses less digits than its factorization.

71425052417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67193022.

The product of its (nonzero) digits is 78400, while the sum is 38.

It can be divided in two parts, 714250 and 52417, that added together give a palindrome (766667).

The spelling of 71425052417 in words is "seventy-one billion, four hundred twenty-five million, fifty-two thousand, four hundred seventeen".