65925131543 has 4 divisors (see below), whose sum is σ = 65928802560. Its totient is φ = 65921460528.

The previous prime is 65925131539. The next prime is 65925131567. The reversal of 65925131543 is 34513152956.

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 65925131543 - 2² = 65925131539 is a prime.

It is a super-2 number, since 2×65925131543² (a number of 22 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 = 65925131494 and 65925131503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65925131533) 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, 1808438 + ... + 1844531.

It is an arithmetic number, because the mean of its divisors is an integer number (16482200640).

Almost surely, 2^65925131543 is an apocalyptic number.

65925131543 is a deficient number, since it is larger than the sum of its proper divisors (3671017).

65925131543 is a wasteful number, since it uses less digits than its factorization.

65925131543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671016.

The product of its digits is 486000, while the sum is 44.

The spelling of 65925131543 in words is "sixty-five billion, nine hundred twenty-five million, one hundred thirty-one thousand, five hundred forty-three".