2545402101 has 24 divisors (see below), whose sum is σ = 3767440992. Its totient is φ = 1527372000.

The previous prime is 2545402073. The next prime is 2545402121. The reversal of 2545402101 is 1012045452.

It is not a de Polignac number, because 2545402101 - 2⁶ = 2545402037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545402121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1950 + ... + 71376.

It is an arithmetic number, because the mean of its divisors is an integer number (156976708).

Almost surely, 2^2545402101 is an apocalyptic number.

It is an amenable number.

2545402101 is a deficient number, since it is larger than the sum of its proper divisors (1222038891).

2545402101 is a wasteful number, since it uses less digits than its factorization.

2545402101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69553 (or 69542 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2545402101 is about 50451.9781673623. The cubic root of 2545402101 is about 1365.3755850366.

Adding to 2545402101 its reverse (1012045452), we get a palindrome (3557447553).

The spelling of 2545402101 in words is "two billion, five hundred forty-five million, four hundred two thousand, one hundred one".