2501223531 has 8 divisors (see below), whose sum is σ = 3335245200. Its totient is φ = 1667342112.

The previous prime is 2501223493. The next prime is 2501223533. The reversal of 2501223531 is 1353221052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2501223531 - 2⁹ = 2501223019 is a prime.

It is a super-2 number, since 2×2501223531² = 12512238304056215922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2501223533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18045 + ... + 72993.

It is an arithmetic number, because the mean of its divisors is an integer number (416905650).

Almost surely, 2^2501223531 is an apocalyptic number.

2501223531 is a deficient number, since it is larger than the sum of its proper divisors (834021669).

2501223531 is a wasteful number, since it uses less digits than its factorization.

2501223531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70125.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2501223531 is about 50012.2338133381. The cubic root of 2501223531 is about 1357.4301837935.

Adding to 2501223531 its reverse (1353221052), we get a palindrome (3854444583).

The spelling of 2501223531 in words is "two billion, five hundred one million, two hundred twenty-three thousand, five hundred thirty-one".