2500231515 has 16 divisors (see below), whose sum is σ = 4003769088. Its totient is φ = 1332323936.

The previous prime is 2500231507. The next prime is 2500231571. The reversal of 2500231515 is 5151320052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2500231515 - 2³ = 2500231507 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52407 + ... + 88016.

It is an arithmetic number, because the mean of its divisors is an integer number (250235568).

Almost surely, 2^2500231515 is an apocalyptic number.

2500231515 is a deficient number, since it is larger than the sum of its proper divisors (1503537573).

2500231515 is a wasteful number, since it uses less digits than its factorization.

2500231515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141618.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2500231515 is about 50002.3150964033. The cubic root of 2500231515 is about 1357.2507022306.

Adding to 2500231515 its reverse (5151320052), we get a palindrome (7651551567).

The spelling of 2500231515 in words is "two billion, five hundred million, two hundred thirty-one thousand, five hundred fifteen".