71525737441 has 4 divisors (see below), whose sum is σ = 72088932352. Its totient is φ = 70962542532.

The previous prime is 71525737427. The next prime is 71525737487. The reversal of 71525737441 is 14473752517.

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 a cyclic number.

It is not a de Polignac number, because 71525737441 - 2⁷ = 71525737313 is a prime.

It is a super-2 number, since 2×71525737441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71525737391 and 71525737400.

It is not an unprimeable number, because it can be changed into a prime (71525731441) 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, 281597265 + ... + 281597518.

It is an arithmetic number, because the mean of its divisors is an integer number (18022233088).

Almost surely, 2^71525737441 is an apocalyptic number.

It is an amenable number.

71525737441 is a deficient number, since it is larger than the sum of its proper divisors (563194911).

71525737441 is a wasteful number, since it uses less digits than its factorization.

71525737441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563194910.

The product of its digits is 823200, while the sum is 46.

The spelling of 71525737441 in words is "seventy-one billion, five hundred twenty-five million, seven hundred thirty-seven thousand, four hundred forty-one".