2505416655 has 16 divisors (see below), whose sum is σ = 4581333504. Its totient is φ = 1145333280.

The previous prime is 2505416609. The next prime is 2505416659. The reversal of 2505416655 is 5566145052.

It is a happy number.

It is not a de Polignac number, because 2505416655 - 2⁹ = 2505416143 is a prime.

It is a super-2 number, since 2×2505416655² = 12554225230302778050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505416659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11930451 + ... + 11930660.

It is an arithmetic number, because the mean of its divisors is an integer number (286333344).

Almost surely, 2^2505416655 is an apocalyptic number.

2505416655 is a deficient number, since it is larger than the sum of its proper divisors (2075916849).

2505416655 is a wasteful number, since it uses less digits than its factorization.

2505416655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23861126.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 2505416655 is about 50054.1372415907. The cubic root of 2505416655 is about 1358.1883054749.

The spelling of 2505416655 in words is "two billion, five hundred five million, four hundred sixteen thousand, six hundred fifty-five".