61152952285 has 4 divisors (see below), whose sum is σ = 73383542748. Its totient is φ = 48922361824.

The previous prime is 61152952271. The next prime is 61152952331. The reversal of 61152952285 is 58225925116.

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 9411716196 + 51741236089 = 97014^2 + 227467^2 .

It is a cyclic number.

It is not a de Polignac number, because 61152952285 - 2³⁵ = 26793213917 is a prime.

It is a super-3 number, since 3×61152952285³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6115295224 + ... + 6115295233.

It is an arithmetic number, because the mean of its divisors is an integer number (18345885687).

Almost surely, 2^61152952285 is an apocalyptic number.

It is an amenable number.

61152952285 is a deficient number, since it is larger than the sum of its proper divisors (12230590463).

61152952285 is a wasteful number, since it uses less digits than its factorization.

61152952285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12230590462.

The product of its digits is 432000, while the sum is 46.

It can be divided in two parts, 6115 and 2952285, that added together give a square (2958400 = 1720²).

The spelling of 61152952285 in words is "sixty-one billion, one hundred fifty-two million, nine hundred fifty-two thousand, two hundred eighty-five".