56121465 has 8 divisors (see below), whose sum is σ = 89794368. Its totient is φ = 29931440.

The previous prime is 56121463. The next prime is 56121469. The reversal of 56121465 is 56412165.

56121465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56121465 - 2¹ = 56121463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56121463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870701 + ... + 1870730.

It is an arithmetic number, because the mean of its divisors is an integer number (11224296).

Almost surely, 2^56121465 is an apocalyptic number.

It is an amenable number.

56121465 is a deficient number, since it is larger than the sum of its proper divisors (33672903).

56121465 is a wasteful number, since it uses less digits than its factorization.

56121465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741439.

The product of its digits is 7200, while the sum is 30.

The square root of 56121465 is about 7491.4260992150. The cubic root of 56121465 is about 382.8626489292.

The spelling of 56121465 in words is "fifty-six million, one hundred twenty-one thousand, four hundred sixty-five".