85732553 has 2 divisors, whose sum is σ = 85732554. Its totient is φ = 85732552.

The previous prime is 85732531. The next prime is 85732561. The reversal of 85732553 is 35523758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61653904 + 24078649 = 7852^2 + 4907^2 .

It is a cyclic number.

It is not a de Polignac number, because 85732553 - 2⁶ = 85732489 is a prime.

It is not a weakly prime, because it can be changed into another prime (85732253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42866276 + 42866277.

It is an arithmetic number, because the mean of its divisors is an integer number (42866277).

Almost surely, 2^85732553 is an apocalyptic number.

It is an amenable number.

85732553 is a deficient number, since it is larger than the sum of its proper divisors (1).

85732553 is an equidigital number, since it uses as much as digits as its factorization.

85732553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 38.

The square root of 85732553 is about 9259.1874913515. The cubic root of 85732553 is about 440.9424581658.

The spelling of 85732553 in words is "eighty-five million, seven hundred thirty-two thousand, five hundred fifty-three".