250515030 has 64 divisors (see below), whose sum is σ = 624734208. Its totient is φ = 64222080.

The previous prime is 250515017. The next prime is 250515037. The reversal of 250515030 is 30515052.

It is a junction number, because it is equal to n+sod(n) for n = 250514988 and 250515006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250515037) by changing a digit.

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, 154504 + ... + 156116.

It is an arithmetic number, because the mean of its divisors is an integer number (9761472).

Almost surely, 2^250515030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250515030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312367104).

250515030 is an abundant number, since it is smaller than the sum of its proper divisors (374219178).

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

250515030 is a wasteful number, since it uses less digits than its factorization.

250515030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 250515030 is about 15827.6665999761. Note that the first 3 decimals coincide. The cubic root of 250515030 is about 630.3928263112.

The spelling of 250515030 in words is "two hundred fifty million, five hundred fifteen thousand, thirty".