61552053775 has 24 divisors (see below), whose sum is σ = 77121407664. Its totient is φ = 48728064000.

The previous prime is 61552053767. The next prime is 61552053779. The reversal of 61552053775 is 57735025516.

It is not a de Polignac number, because 61552053775 - 2³ = 61552053767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61552053779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5718799 + ... + 5729551.

It is an arithmetic number, because the mean of its divisors is an integer number (3213391986).

Almost surely, 2^61552053775 is an apocalyptic number.

61552053775 is a deficient number, since it is larger than the sum of its proper divisors (15569353889).

61552053775 is a wasteful number, since it uses less digits than its factorization.

61552053775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13131 (or 13126 counting only the distinct ones).

The product of its (nonzero) digits is 1102500, while the sum is 46.

The spelling of 61552053775 in words is "sixty-one billion, five hundred fifty-two million, fifty-three thousand, seven hundred seventy-five".