71525213023223 has 4 divisors (see below), whose sum is σ = 73832477959488. Its totient is φ = 69217948086960.

The previous prime is 71525213023207. The next prime is 71525213023237. The reversal of 71525213023223 is 32232031252517.

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

It is a cyclic number.

It is not a de Polignac number, because 71525213023223 - 2⁴ = 71525213023207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71525213013223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153632468086 + ... + 1153632468147.

It is an arithmetic number, because the mean of its divisors is an integer number (18458119489872).

Almost surely, 2^{71525213023223} is an apocalyptic number.

71525213023223 is a deficient number, since it is larger than the sum of its proper divisors (2307264936265).

71525213023223 is a wasteful number, since it uses less digits than its factorization.

71525213023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307264936264.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 71525213023223 in words is "seventy-one trillion, five hundred twenty-five billion, two hundred thirteen million, twenty-three thousand, two hundred twenty-three".