56225429281 has 8 divisors (see below), whose sum is σ = 68037494400. Its totient is φ = 45358329408.

The previous prime is 56225429257. The next prime is 56225429287. The reversal of 56225429281 is 18292452265.

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

It is not a de Polignac number, because 56225429281 - 2¹⁹ = 56224904993 is a prime.

It is a super-2 number, since 2×56225429281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56225429287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236241181 + ... + 236241418.

It is an arithmetic number, because the mean of its divisors is an integer number (8504686800).

Almost surely, 2^56225429281 is an apocalyptic number.

It is an amenable number.

56225429281 is a deficient number, since it is larger than the sum of its proper divisors (11812065119).

56225429281 is a wasteful number, since it uses less digits than its factorization.

56225429281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472482623.

The product of its digits is 691200, while the sum is 46.

The spelling of 56225429281 in words is "fifty-six billion, two hundred twenty-five million, four hundred twenty-nine thousand, two hundred eighty-one".