2545034021 has 8 divisors (see below), whose sum is σ = 2679976800. Its totient is φ = 2410190640.

The previous prime is 2545033969. The next prime is 2545034053. The reversal of 2545034021 is 1204305452.

It is a happy number.

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 2545034021 - 2⁶ = 2545033957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545034081) 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, 30950 + ... + 77768.

It is an arithmetic number, because the mean of its divisors is an integer number (334997100).

Almost surely, 2^2545034021 is an apocalyptic number.

It is an amenable number.

2545034021 is a deficient number, since it is larger than the sum of its proper divisors (134942779).

2545034021 is a wasteful number, since it uses less digits than its factorization.

2545034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49699.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2545034021 is about 50448.3302102260. The cubic root of 2545034021 is about 1365.3097681045.

Adding to 2545034021 its reverse (1204305452), we get a palindrome (3749339473).

The spelling of 2545034021 in words is "two billion, five hundred forty-five million, thirty-four thousand, twenty-one".