32561057 has 4 divisors (see below), whose sum is σ = 32896836. Its totient is φ = 32225280.

The previous prime is 32561047. The next prime is 32561059. The reversal of 32561057 is 75016523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75016523 = 107 ⋅701089.

It can be written as a sum of positive squares in 2 ways, for example, as 11621281 + 20939776 = 3409^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 32561057 - 2¹⁶ = 32495521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32561059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167744 + ... + 167937.

It is an arithmetic number, because the mean of its divisors is an integer number (8224209).

Almost surely, 2^32561057 is an apocalyptic number.

It is an amenable number.

32561057 is a deficient number, since it is larger than the sum of its proper divisors (335779).

32561057 is an equidigital number, since it uses as much as digits as its factorization.

32561057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335778.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 32561057 is about 5706.2296659002. The cubic root of 32561057 is about 319.3249343181.

The spelling of 32561057 in words is "thirty-two million, five hundred sixty-one thousand, fifty-seven".