34572521 has 2 divisors, whose sum is σ = 34572522. Its totient is φ = 34572520.

The previous prime is 34572487. The next prime is 34572547. The reversal of 34572521 is 12527543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 9211225 = 5036^2 + 3035^2 .

It is a cyclic number.

It is not a de Polignac number, because 34572521 - 2¹⁰ = 34571497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34572821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17286260 + 17286261.

It is an arithmetic number, because the mean of its divisors is an integer number (17286261).

Almost surely, 2^34572521 is an apocalyptic number.

It is an amenable number.

34572521 is a deficient number, since it is larger than the sum of its proper divisors (1).

34572521 is an equidigital number, since it uses as much as digits as its factorization.

34572521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 34572521 is about 5879.8402189175. The cubic root of 34572521 is about 325.7694463054.

The spelling of 34572521 in words is "thirty-four million, five hundred seventy-two thousand, five hundred twenty-one".