425516 has 36 divisors (see below), whose sum is σ = 938448. Its totient is φ = 167328.

The previous prime is 425501. The next prime is 425519. The reversal of 425516 is 615524.

425516 = T₆₃ + T₆₄ + ... + T₁₄₀.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 425491 and 425500.

It is not an unprimeable number, because it can be changed into a prime (425519) by changing a digit.

425516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2465 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (26068).

2⁴²⁵⁵¹⁶ 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 425516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469224).

425516 is an abundant number, since it is smaller than the sum of its proper divisors (512932).

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

425516 is a wasteful number, since it uses less digits than its factorization.

425516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 189 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 425516 is about 652.3158744044. The cubic root of 425516 is about 75.2151452067.

The spelling of 425516 in words is "four hundred twenty-five thousand, five hundred sixteen".