61525852771 has 8 divisors (see below), whose sum is σ = 64209229344. Its totient is φ = 58843171200.

The previous prime is 61525852769. The next prime is 61525852781. The reversal of 61525852771 is 17725852516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61525852771 - 2¹ = 61525852769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61525852781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371 + ... + 350971.

It is an arithmetic number, because the mean of its divisors is an integer number (8026153668).

Almost surely, 2^61525852771 is an apocalyptic number.

61525852771 is a deficient number, since it is larger than the sum of its proper divisors (2683376573).

61525852771 is a wasteful number, since it uses less digits than its factorization.

61525852771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347501.

The product of its digits is 1176000, while the sum is 49.

The spelling of 61525852771 in words is "sixty-one billion, five hundred twenty-five million, eight hundred fifty-two thousand, seven hundred seventy-one".