43143537725 has 12 divisors (see below), whose sum is σ = 53500638240. Its totient is φ = 34513119600.

The previous prime is 43143537721. The next prime is 43143537727. The reversal of 43143537725 is 52773534134.

It is not a de Polignac number, because 43143537725 - 2² = 43143537721 is a prime.

It is a super-2 number, since 2×43143537725² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143537721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788816 + ... + 841734.

It is an arithmetic number, because the mean of its divisors is an integer number (4458386520).

Almost surely, 2^43143537725 is an apocalyptic number.

It is an amenable number.

43143537725 is a deficient number, since it is larger than the sum of its proper divisors (10357100515).

43143537725 is a wasteful number, since it uses less digits than its factorization.

43143537725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85540 (or 85535 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 44.

The spelling of 43143537725 in words is "forty-three billion, one hundred forty-three million, five hundred thirty-seven thousand, seven hundred twenty-five".