2521403342 has 8 divisors (see below), whose sum is σ = 3829980000. Its totient is φ = 1244743344.

The previous prime is 2521403329. The next prime is 2521403351. The reversal of 2521403342 is 2433041252.

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

It is a congruent number.

It is an unprimeable number.

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, 7978967 + ... + 7979282.

It is an arithmetic number, because the mean of its divisors is an integer number (478747500).

Almost surely, 2^2521403342 is an apocalyptic number.

2521403342 is a deficient number, since it is larger than the sum of its proper divisors (1308576658).

2521403342 is a wasteful number, since it uses less digits than its factorization.

2521403342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15958330.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2521403342 is about 50213.5772675080. The cubic root of 2521403342 is about 1361.0709812947.

Adding to 2521403342 its reverse (2433041252), we get a palindrome (4954444594).

The spelling of 2521403342 in words is "two billion, five hundred twenty-one million, four hundred three thousand, three hundred forty-two".