56545220402 has 8 divisors (see below), whose sum is σ = 92528542512. Its totient is φ = 25702372900.

The previous prime is 56545220401. The next prime is 56545220467. The reversal of 56545220402 is 20402254565.

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

It is not an unprimeable number, because it can be changed into a prime (56545220401) 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 3 ways as a sum of consecutive naturals, for example, 1285118624 + ... + 1285118667.

It is an arithmetic number, because the mean of its divisors is an integer number (11566067814).

Almost surely, 2^56545220402 is an apocalyptic number.

56545220402 is a deficient number, since it is larger than the sum of its proper divisors (35983322110).

56545220402 is a wasteful number, since it uses less digits than its factorization.

56545220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570237304.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 56545220402 its reverse (20402254565), we get a palindrome (76947474967).

The spelling of 56545220402 in words is "fifty-six billion, five hundred forty-five million, two hundred twenty thousand, four hundred two".