61888264 has 8 divisors (see below), whose sum is σ = 116040510. Its totient is φ = 30944128.

The previous prime is 61888261. The next prime is 61888273. The reversal of 61888264 is 46288816.

It can be written as a sum of positive squares in only one way, i.e., 54908100 + 6980164 = 7410^2 + 2642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 61888264.

It is not an unprimeable number, because it can be changed into a prime (61888261) by changing a digit.

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, 3868009 + ... + 3868024.

Almost surely, 2^61888264 is an apocalyptic number.

It is an amenable number.

61888264 is a deficient number, since it is larger than the sum of its proper divisors (54152246).

61888264 is a wasteful number, since it uses less digits than its factorization.

61888264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736039 (or 7736035 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 61888264 is about 7866.9094312824. The cubic root of 61888264 is about 395.5512551025.

The spelling of 61888264 in words is "sixty-one million, eight hundred eighty-eight thousand, two hundred sixty-four".