2542421545 has 8 divisors (see below), whose sum is σ = 3051215424. Its totient is φ = 2033730864.

The previous prime is 2542421537. The next prime is 2542421549. The reversal of 2542421545 is 5451242452.

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

It is a cyclic number.

It is not a de Polignac number, because 2542421545 - 2³ = 2542421537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2542421545.

It is not an unprimeable number, because it can be changed into a prime (2542421549) 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, 47172 + ... + 85498.

It is an arithmetic number, because the mean of its divisors is an integer number (381401928).

Almost surely, 2^2542421545 is an apocalyptic number.

It is an amenable number.

2542421545 is a deficient number, since it is larger than the sum of its proper divisors (508793879).

2542421545 is a wasteful number, since it uses less digits than its factorization.

2542421545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51599.

The product of its digits is 64000, while the sum is 34.

The square root of 2542421545 is about 50422.4309707495. The cubic root of 2542421545 is about 1364.8424449277.

Adding to 2542421545 its reverse (5451242452), we get a palindrome (7993663997).

The spelling of 2542421545 in words is "two billion, five hundred forty-two million, four hundred twenty-one thousand, five hundred forty-five".