61385026 has 4 divisors (see below), whose sum is σ = 92077542. Its totient is φ = 30692512.

The previous prime is 61385017. The next prime is 61385059. The reversal of 61385026 is 62058316.

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

It can be written as a sum of positive squares in only one way, i.e., 50395801 + 10989225 = 7099^2 + 3315^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15346255 + ... + 15346258.

Almost surely, 2^61385026 is an apocalyptic number.

61385026 is a deficient number, since it is larger than the sum of its proper divisors (30692516).

61385026 is a wasteful number, since it uses less digits than its factorization.

61385026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30692515.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 61385026 is about 7834.8596668990. The cubic root of 61385026 is about 394.4762079353.

The spelling of 61385026 in words is "sixty-one million, three hundred eighty-five thousand, twenty-six".