2545272342 has 64 divisors (see below), whose sum is σ = 5725080000. Its totient is φ = 838139904.

The previous prime is 2545272311. The next prime is 2545272403. The reversal of 2545272342 is 2432725452.

2545272342 is a `hidden beast` number, since 2 + 5 + 45 + 272 + 342 = 666.

It is a super-2 number, since 2×2545272342² = 12956822589900329928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2545272297 and 2545272306.

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 31 ways as a sum of consecutive naturals, for example, 2739334 + ... + 2740262.

It is an arithmetic number, because the mean of its divisors is an integer number (89454375).

Almost surely, 2^2545272342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545272342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2862540000).

2545272342 is an abundant number, since it is smaller than the sum of its proper divisors (3179807658).

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

2545272342 is a wasteful number, since it uses less digits than its factorization.

2545272342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1496 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 2545272342 is about 50450.6921855389. The cubic root of 2545272342 is about 1365.3523833610.

Adding to 2545272342 its reverse (2432725452), we get a palindrome (4977997794).

The spelling of 2545272342 in words is "two billion, five hundred forty-five million, two hundred seventy-two thousand, three hundred forty-two".