83532521 has 2 divisors, whose sum is σ = 83532522. Its totient is φ = 83532520.

The previous prime is 83532517. The next prime is 83532563. The reversal of 83532521 is 12523538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 31764496 = 7195^2 + 5636^2 .

It is a cyclic number.

It is not a de Polignac number, because 83532521 - 2² = 83532517 is a prime.

It is not a weakly prime, because it can be changed into another prime (83522521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41766260 + 41766261.

It is an arithmetic number, because the mean of its divisors is an integer number (41766261).

Almost surely, 2^83532521 is an apocalyptic number.

It is an amenable number.

83532521 is a deficient number, since it is larger than the sum of its proper divisors (1).

83532521 is an equidigital number, since it uses as much as digits as its factorization.

83532521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 83532521 is about 9139.6127379665. The cubic root of 83532521 is about 437.1379683651.

The spelling of 83532521 in words is "eighty-three million, five hundred thirty-two thousand, five hundred twenty-one".