43252537 has 2 divisors, whose sum is σ = 43252538. Its totient is φ = 43252536.

The previous prime is 43252529. The next prime is 43252541. The reversal of 43252537 is 73525234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42784681 + 467856 = 6541^2 + 684^2 .

It is a cyclic number.

It is not a de Polignac number, because 43252537 - 2³ = 43252529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43252499 and 43252508.

It is not a weakly prime, because it can be changed into another prime (43252507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626268 + 21626269.

It is an arithmetic number, because the mean of its divisors is an integer number (21626269).

Almost surely, 2^43252537 is an apocalyptic number.

It is an amenable number.

43252537 is a deficient number, since it is larger than the sum of its proper divisors (1).

43252537 is an equidigital number, since it uses as much as digits as its factorization.

43252537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 31.

The square root of 43252537 is about 6576.6661006927. Note that the first 3 decimals coincide. The cubic root of 43252537 is about 351.0243108894.

The spelling of 43252537 in words is "forty-three million, two hundred fifty-two thousand, five hundred thirty-seven".