2521525542 has 16 divisors (see below), whose sum is σ = 5043548592. Its totient is φ = 840425600.

The previous prime is 2521525541. The next prime is 2521525571. The reversal of 2521525542 is 2455251252.

It is a happy number.

2521525542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521525541) 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, 94042 + ... + 117842.

It is an arithmetic number, because the mean of its divisors is an integer number (315221787).

Almost surely, 2^2521525542 is an apocalyptic number.

2521525542 is an abundant number, since it is smaller than the sum of its proper divisors (2522023050).

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

2521525542 is a wasteful number, since it uses less digits than its factorization.

2521525542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41463.

The product of its digits is 40000, while the sum is 33.

The square root of 2521525542 is about 50214.7940551388. The cubic root of 2521525542 is about 1361.0929690748.

Adding to 2521525542 its reverse (2455251252), we get a palindrome (4976776794).

The spelling of 2521525542 in words is "two billion, five hundred twenty-one million, five hundred twenty-five thousand, five hundred forty-two".