2531623242 has 8 divisors (see below), whose sum is σ = 5063246496. Its totient is φ = 843874412.

The previous prime is 2531623231. The next prime is 2531623261. The reversal of 2531623242 is 2423261352.

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

2531623242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210968598 + ... + 210968609.

It is an arithmetic number, because the mean of its divisors is an integer number (632905812).

Almost surely, 2^2531623242 is an apocalyptic number.

2531623242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2531623242 is a wasteful number, since it uses less digits than its factorization.

2531623242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421937212.

The product of its digits is 17280, while the sum is 30.

The square root of 2531623242 is about 50315.2386658356. The cubic root of 2531623242 is about 1362.9074265887.

Adding to 2531623242 its reverse (2423261352), we get a palindrome (4954884594).

The spelling of 2531623242 in words is "two billion, five hundred thirty-one million, six hundred twenty-three thousand, two hundred forty-two".