2531604622 has 4 divisors (see below), whose sum is σ = 3797406936. Its totient is φ = 1265802310.

The previous prime is 2531604577. The next prime is 2531604643. The reversal of 2531604622 is 2264061352.

2531604622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632901154 + ... + 632901157.

It is an arithmetic number, because the mean of its divisors is an integer number (949351734).

Almost surely, 2^2531604622 is an apocalyptic number.

2531604622 is a deficient number, since it is larger than the sum of its proper divisors (1265802314).

2531604622 is a wasteful number, since it uses less digits than its factorization.

2531604622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265802313.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2531604622 is about 50315.0536320891. The cubic root of 2531604622 is about 1362.9040852018.

Adding to 2531604622 its reverse (2264061352), we get a palindrome (4795665974).

The spelling of 2531604622 in words is "two billion, five hundred thirty-one million, six hundred four thousand, six hundred twenty-two".