2645250623 has 8 divisors (see below), whose sum is σ = 2785557120. Its totient is φ = 2505052440.

The previous prime is 2645250607. The next prime is 2645250637. The reversal of 2645250623 is 3260525462.

It is a Cunningham number, because it is equal to 51432²-1.

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 2645250623 - 2⁴ = 2645250607 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 (2645255623) 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 7 ways as a sum of consecutive naturals, for example, 25718 + ... + 77148.

It is an arithmetic number, because the mean of its divisors is an integer number (348194640).

Almost surely, 2^2645250623 is an apocalyptic number.

2645250623 is a deficient number, since it is larger than the sum of its proper divisors (140306497).

2645250623 is a wasteful number, since it uses less digits than its factorization.

2645250623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54157.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2645250623 is about 51431.9999902784. Note that the first 5 decimals coincide. The cubic root of 2645250623 is about 1383.0003025408. Note that the first 3 decimals are identical.

The spelling of 2645250623 in words is "two billion, six hundred forty-five million, two hundred fifty thousand, six hundred twenty-three".