2545251553 has 8 divisors (see below), whose sum is σ = 2860216128. Its totient is φ = 2247312144.

The previous prime is 2545251551. The next prime is 2545251557. The reversal of 2545251553 is 3551525452.

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 2545251553 - 2¹ = 2545251551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545251551) 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, 4255975 + ... + 4256572.

It is an arithmetic number, because the mean of its divisors is an integer number (357527016).

Almost surely, 2^2545251553 is an apocalyptic number.

2545251553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2545251553 is a deficient number, since it is larger than the sum of its proper divisors (314964575).

2545251553 is a wasteful number, since it uses less digits than its factorization.

2545251553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512583.

The product of its digits is 150000, while the sum is 37.

The square root of 2545251553 is about 50450.4861522662. The cubic root of 2545251553 is about 1365.3486660918.

The spelling of 2545251553 in words is "two billion, five hundred forty-five million, two hundred fifty-one thousand, five hundred fifty-three".