2642637525 has 96 divisors (see below), whose sum is σ = 4869116928. Its totient is φ = 1254028800.

The previous prime is 2642637521. The next prime is 2642637583. The reversal of 2642637525 is 5257362462.

It is a happy number.

It is not a de Polignac number, because 2642637525 - 2² = 2642637521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642637521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11641462 + ... + 11641688.

It is an arithmetic number, because the mean of its divisors is an integer number (50719968).

Almost surely, 2^2642637525 is an apocalyptic number.

2642637525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2642637525 is a deficient number, since it is larger than the sum of its proper divisors (2226479403).

2642637525 is a wasteful number, since it uses less digits than its factorization.

2642637525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 486 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The square root of 2642637525 is about 51406.5902876275. The cubic root of 2642637525 is about 1382.5447557906.

Adding to 2642637525 its reverse (5257362462), we get a palindrome (7899999987).

The spelling of 2642637525 in words is "two billion, six hundred forty-two million, six hundred thirty-seven thousand, five hundred twenty-five".