56154306961 has 9 divisors (see below), whose sum is σ = 58707648489. Its totient is φ = 53707602036.

The previous prime is 56154306911. The next prime is 56154307003. The reversal of 56154306961 is 16960345165.

The square root of 56154306961 is 236969.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 56154306961 - 2⁷ = 56154306833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56154306911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5445136 + ... + 5455438.

Almost surely, 2^56154306961 is an apocalyptic number.

56154306961 is the 236969-th square number.

56154306961 is the 118485-th centered octagonal number.

It is an amenable number.

56154306961 is a deficient number, since it is larger than the sum of its proper divisors (2553341528).

56154306961 is an frugal number, since it uses more digits than its factorization.

56154306961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20652 (or 10326 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 56154306961 in words is "fifty-six billion, one hundred fifty-four million, three hundred six thousand, nine hundred sixty-one".