61485613055 has 16 divisors (see below), whose sum is σ = 74288884320. Its totient is φ = 48851755392.

The previous prime is 61485613027. The next prime is 61485613061. The reversal of 61485613055 is 55031658416.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61485613055 is a prime.

It is a super-2 number, since 2×61485613055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61485612997 and 61485613015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670217 + ... + 756413.

It is an arithmetic number, because the mean of its divisors is an integer number (4643055270).

Almost surely, 2^61485613055 is an apocalyptic number.

61485613055 is a deficient number, since it is larger than the sum of its proper divisors (12803271265).

61485613055 is a wasteful number, since it uses less digits than its factorization.

61485613055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87178.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 61485613055 in words is "sixty-one billion, four hundred eighty-five million, six hundred thirteen thousand, fifty-five".