425548620 has 192 divisors, whose sum is σ = 1529149440. Its totient is φ = 96235776.

The previous prime is 425548579. The next prime is 425548649. The reversal of 425548620 is 26845524.

It is a happy number.

425548620 is a `hidden beast` number, since 4 + 2 + 554 + 86 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 388794 + ... + 389886.

It is an arithmetic number, because the mean of its divisors is an integer number (7964320).

Almost surely, 2^425548620 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 425548620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764574720).

425548620 is an abundant number, since it is smaller than the sum of its proper divisors (1103600820).

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

425548620 is a wasteful number, since it uses less digits than its factorization.

425548620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 425548620 is about 20628.8298262408. The cubic root of 425548620 is about 752.1706715193.

The spelling of 425548620 in words is "four hundred twenty-five million, five hundred forty-eight thousand, six hundred twenty".