61570441 has 2 divisors, whose sum is σ = 61570442. Its totient is φ = 61570440.

The previous prime is 61570429. The next prime is 61570477. The reversal of 61570441 is 14407516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60140025 + 1430416 = 7755^2 + 1196^2 .

It is a cyclic number.

It is not a de Polignac number, because 61570441 - 2⁵ = 61570409 is a prime.

It is not a weakly prime, because it can be changed into another prime (61570541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30785220 + 30785221.

It is an arithmetic number, because the mean of its divisors is an integer number (30785221).

Almost surely, 2^61570441 is an apocalyptic number.

It is an amenable number.

61570441 is a deficient number, since it is larger than the sum of its proper divisors (1).

61570441 is an equidigital number, since it uses as much as digits as its factorization.

61570441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 61570441 is about 7846.6834395176. The cubic root of 61570441 is about 394.8729837832.

Adding to 61570441 its reverse (14407516), we get a palindrome (75977957).

The spelling of 61570441 in words is "sixty-one million, five hundred seventy thousand, four hundred forty-one".