56291767992572 has 96 divisors (see below), whose sum is σ = 119668471104000. Its totient is φ = 22632534777600.

The previous prime is 56291767992571. The next prime is 56291767992583. The reversal of 56291767992572 is 27529976719265.

It is a junction number, because it is equal to n+sod(n) for n = 56291767992493 and 56291767992502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56291767992571) 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, 27787322 + ... + 29744222.

It is an arithmetic number, because the mean of its divisors is an integer number (1246546574000).

Almost surely, 2^{56291767992572} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56291767992572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59834235552000).

56291767992572 is an abundant number, since it is smaller than the sum of its proper divisors (63376703111428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56291767992572 is a wasteful number, since it uses less digits than its factorization.

56291767992572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957459 (or 1957457 counting only the distinct ones).

The product of its digits is 1800338400, while the sum is 77.

The spelling of 56291767992572 in words is "fifty-six trillion, two hundred ninety-one billion, seven hundred sixty-seven million, nine hundred ninety-two thousand, five hundred seventy-two".