61411057 has 4 divisors (see below), whose sum is σ = 61585380. Its totient is φ = 61236736.

The previous prime is 61411043. The next prime is 61411069. The reversal of 61411057 is 75011416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42042256 + 19368801 = 6484^2 + 4401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61411057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61411027) 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, 86632 + ... + 87337.

It is an arithmetic number, because the mean of its divisors is an integer number (15396345).

Almost surely, 2^61411057 is an apocalyptic number.

It is an amenable number.

61411057 is a deficient number, since it is larger than the sum of its proper divisors (174323).

61411057 is a wasteful number, since it uses less digits than its factorization.

61411057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174322.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 61411057 is about 7836.5207203197. The cubic root of 61411057 is about 394.5319607232.

The spelling of 61411057 in words is "sixty-one million, four hundred eleven thousand, fifty-seven".