425621501052 has 96 divisors (see below), whose sum is σ = 1094410614528. Its totient is φ = 127670400000.

The previous prime is 425621501047. The next prime is 425621501069. The reversal of 425621501052 is 250105126524.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6903402 + ... + 6964782.

It is an arithmetic number, because the mean of its divisors is an integer number (11400110568).

Almost surely, 2^425621501052 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 425621501052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547205307264).

425621501052 is an abundant number, since it is smaller than the sum of its proper divisors (668789113476).

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

425621501052 is a wasteful number, since it uses less digits than its factorization.

425621501052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61931 (or 61929 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 425621501052 its reverse (250105126524), we get a palindrome (675726627576).

The spelling of 425621501052 in words is "four hundred twenty-five billion, six hundred twenty-one million, five hundred one thousand, fifty-two".