54461990061 has 32 divisors (see below), whose sum is σ = 83080919040. Its totient is φ = 35238758400.

The previous prime is 54461990057. The next prime is 54461990101. The reversal of 54461990061 is 16009916445.

It is a happy number.

54461990061 is a `hidden beast` number, since 544 + 6 + 19 + 90 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 54461990061 - 2² = 54461990057 is a prime.

It is a super-2 number, since 2×54461990061² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54461989989 and 54461990016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54461990461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86196 + ... + 341106.

It is an arithmetic number, because the mean of its divisors is an integer number (2596278720).

Almost surely, 2^54461990061 is an apocalyptic number.

It is an amenable number.

54461990061 is a deficient number, since it is larger than the sum of its proper divisors (28618928979).

54461990061 is a wasteful number, since it uses less digits than its factorization.

54461990061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255154 (or 255148 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 54461990061 in words is "fifty-four billion, four hundred sixty-one million, nine hundred ninety thousand, sixty-one".