2505497554 has 16 divisors (see below), whose sum is σ = 4298040000. Its totient is φ = 1073059344.

The previous prime is 2505497551. The next prime is 2505497563. The reversal of 2505497554 is 4557945052.

It is not an unprimeable number, because it can be changed into a prime (2505497551) 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, 38709 + ... + 80680.

It is an arithmetic number, because the mean of its divisors is an integer number (268627500).

Almost surely, 2^2505497554 is an apocalyptic number.

2505497554 is a deficient number, since it is larger than the sum of its proper divisors (1792542446).

2505497554 is a wasteful number, since it uses less digits than its factorization.

2505497554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120897.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The square root of 2505497554 is about 50054.9453500850. The cubic root of 2505497554 is about 1358.2029237877.

The spelling of 2505497554 in words is "two billion, five hundred five million, four hundred ninety-seven thousand, five hundred fifty-four".