425551420 has 48 divisors (see below), whose sum is σ = 1024289280. Its totient is φ = 145479744.

The previous prime is 425551409. The next prime is 425551421. The reversal of 425551420 is 24155524.

It is a super-2 number, since 2×425551420² = 362188022128032800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425551421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46027 + ... + 54493.

It is an arithmetic number, because the mean of its divisors is an integer number (21339360).

Almost surely, 2^425551420 is an apocalyptic number.

It is an amenable number.

425551420 is an abundant number, since it is smaller than the sum of its proper divisors (598737860).

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

425551420 is a wasteful number, since it uses less digits than its factorization.

425551420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842 (or 8840 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 425551420 is about 20628.8976923150. The cubic root of 425551420 is about 752.1723212119.

The spelling of 425551420 in words is "four hundred twenty-five million, five hundred fifty-one thousand, four hundred twenty".