425710661559552 has 648 divisors, whose sum is σ = 1342535308077600. Its totient is φ = 129369239838720.

The previous prime is 425710661559439. The next prime is 425710661559559. The reversal of 425710661559552 is 255955166017524.

425710661559552 is a `hidden beast` number, since 4 + 2 + 5 + 7 + 1 + 0 + 6 + 615 + 5 + 9 + 5 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 425710661559552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425710661559559) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7530275478 + ... + 7530332010.

Almost surely, 2^{425710661559552} 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 425710661559552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671267654038800).

425710661559552 is an abundant number, since it is smaller than the sum of its proper divisors (916824646518048).

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

425710661559552 is a wasteful number, since it uses less digits than its factorization.

425710661559552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56815 (or 56767 counting only the distinct ones).

The product of its (nonzero) digits is 113400000, while the sum is 63.

The spelling of 425710661559552 in words is "four hundred twenty-five trillion, seven hundred ten billion, six hundred sixty-one million, five hundred fifty-nine thousand, five hundred fifty-two".