61457085 has 24 divisors (see below), whose sum is σ = 106942680. Its totient is φ = 32648832.

The previous prime is 61457083. The next prime is 61457087. The reversal of 61457085 is 58075416.

61457085 is a `hidden beast` number, since 6 + 1 + 4 + 570 + 85 = 666.

It is an interprime number because it is at equal distance from previous prime (61457083) and next prime (61457087).

It can be written as a sum of positive squares in 4 ways, for example, as 7918596 + 53538489 = 2814^2 + 7317^2 .

It is not a de Polignac number, because 61457085 - 2¹ = 61457083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61457083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9567 + ... + 14643.

It is an arithmetic number, because the mean of its divisors is an integer number (4455945).

Almost surely, 2^61457085 is an apocalyptic number.

It is an amenable number.

61457085 is a deficient number, since it is larger than the sum of its proper divisors (45485595).

61457085 is a wasteful number, since it uses less digits than its factorization.

61457085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357 (or 5354 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 61457085 is about 7839.4569327218. The cubic root of 61457085 is about 394.6305042265.

The spelling of 61457085 in words is "sixty-one million, four hundred fifty-seven thousand, eighty-five".