1000025015 has 16 divisors (see below), whose sum is σ = 1312796160. Its totient is φ = 725250720.

The previous prime is 1000024999. The next prime is 1000025077. The reversal of 1000025015 is 5105200001.

It is not a de Polignac number, because 1000025015 - 2⁴ = 1000024999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5579 + ... + 45068.

It is an arithmetic number, because the mean of its divisors is an integer number (82049760).

Almost surely, 2^1000025015 is an apocalyptic number.

1000025015 is a deficient number, since it is larger than the sum of its proper divisors (312771145).

1000025015 is a wasteful number, since it uses less digits than its factorization.

1000025015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51022.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1000025015 is about 31623.1721210887. The cubic root of 1000025015 is about 1000.0083382638.

Adding to 1000025015 its reverse (5105200001), we get a palindrome (6105225016).

The spelling of 1000025015 in words is "one billion, twenty-five thousand, fifteen".