250515001 has 4 divisors (see below), whose sum is σ = 273289104. Its totient is φ = 227740900.

The previous prime is 250514989. The next prime is 250515007. The reversal of 250515001 is 100515052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250515001 - 2⁹ = 250514489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 250515001.

It is not an unprimeable number, because it can be changed into a prime (250515007) 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 3 ways as a sum of consecutive naturals, for example, 11387035 + ... + 11387056.

It is an arithmetic number, because the mean of its divisors is an integer number (68322276).

Almost surely, 2^250515001 is an apocalyptic number.

It is an amenable number.

250515001 is a deficient number, since it is larger than the sum of its proper divisors (22774103).

250515001 is a wasteful number, since it uses less digits than its factorization.

250515001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22774102.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 250515001 is about 15827.6656838588. The cubic root of 250515001 is about 630.3928019861.

The spelling of 250515001 in words is "two hundred fifty million, five hundred fifteen thousand, one".