425425524524 has 96 divisors (see below), whose sum is σ = 1005517632000. Its totient is φ = 152999945280.

The previous prime is 425425524493. The next prime is 425425524529.

425425524524 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (425425524529) 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 31 ways as a sum of consecutive naturals, for example, 362327 + ... + 991025.

It is an arithmetic number, because the mean of its divisors is an integer number (10474142000).

Almost surely, 2^425425524524 is an apocalyptic number.

425425524524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425425524524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502758816000).

425425524524 is an abundant number, since it is smaller than the sum of its proper divisors (580092107476).

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

425425524524 is a wasteful number, since it uses less digits than its factorization.

425425524524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628760 (or 628732 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 44.

It can be divided in two parts, 425425 and 524524, that added together give a palindrome (949949).

The spelling of 425425524524 in words is "four hundred twenty-five billion, four hundred twenty-five million, five hundred twenty-four thousand, five hundred twenty-four".