2526661542 has 8 divisors (see below), whose sum is σ = 5053323096. Its totient is φ = 842220512.

The previous prime is 2526661523. The next prime is 2526661547. The reversal of 2526661542 is 2451666252.

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

2526661542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2526661542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526661547) 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 3 ways as a sum of consecutive naturals, for example, 210555123 + ... + 210555134.

It is an arithmetic number, because the mean of its divisors is an integer number (631665387).

Almost surely, 2^2526661542 is an apocalyptic number.

2526661542 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.

2526661542 is a wasteful number, since it uses less digits than its factorization.

2526661542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421110262.

The product of its digits is 172800, while the sum is 39.

The square root of 2526661542 is about 50265.9083475073. The cubic root of 2526661542 is about 1362.0164619442.

The spelling of 2526661542 in words is "two billion, five hundred twenty-six million, six hundred sixty-one thousand, five hundred forty-two".