250502420 has 96 divisors (see below), whose sum is σ = 617422848. Its totient is φ = 83607552.

The previous prime is 250502393. The next prime is 250502431. The reversal of 250502420 is 24205052.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 250502392 and 250502401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1297844 + ... + 1298036.

It is an arithmetic number, because the mean of its divisors is an integer number (6431488).

Almost surely, 2^250502420 is an apocalyptic number.

250502420 is a gapful number since it is divisible by the number (20) 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 250502420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308711424).

250502420 is an abundant number, since it is smaller than the sum of its proper divisors (366920428).

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

250502420 is a wasteful number, since it uses less digits than its factorization.

250502420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 250502420 is about 15827.2682418666. The cubic root of 250502420 is about 630.3822489193.

Adding to 250502420 its reverse (24205052), we get a palindrome (274707472).

The spelling of 250502420 in words is "two hundred fifty million, five hundred two thousand, four hundred twenty".