61442575 has 6 divisors (see below), whose sum is σ = 76188824. Its totient is φ = 49154040.

The previous prime is 61442569. The next prime is 61442581. The reversal of 61442575 is 57524416.

61442575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61442569) and next prime (61442581).

It is not a de Polignac number, because 61442575 - 2⁵ = 61442543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61442575.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228827 + ... + 1228876.

Almost surely, 2^61442575 is an apocalyptic number.

61442575 is a deficient number, since it is larger than the sum of its proper divisors (14746249).

61442575 is a wasteful number, since it uses less digits than its factorization.

61442575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457713 (or 2457708 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 61442575 is about 7838.5314313333. The cubic root of 61442575 is about 394.5994443993.

The spelling of 61442575 in words is "sixty-one million, four hundred forty-two thousand, five hundred seventy-five".