2505453557 has 16 divisors (see below), whose sum is σ = 2728776960. Its totient is φ = 2290768128.

The previous prime is 2505453553. The next prime is 2505453589. The reversal of 2505453557 is 7553545052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2505453557 - 2² = 2505453553 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 (2505453553) 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 15 ways as a sum of consecutive naturals, for example, 454544 + ... + 460022.

It is an arithmetic number, because the mean of its divisors is an integer number (170548560).

Almost surely, 2^2505453557 is an apocalyptic number.

It is an amenable number.

2505453557 is a deficient number, since it is larger than the sum of its proper divisors (223323403).

2505453557 is a wasteful number, since it uses less digits than its factorization.

2505453557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its (nonzero) digits is 525000, while the sum is 41.

The square root of 2505453557 is about 50054.5058611110. The cubic root of 2505453557 is about 1358.1949736431.

The spelling of 2505453557 in words is "two billion, five hundred five million, four hundred fifty-three thousand, five hundred fifty-seven".