2499820054 has 4 divisors (see below), whose sum is σ = 3749730084. Its totient is φ = 1249910026.

The previous prime is 2499820051. The next prime is 2499820069. The reversal of 2499820054 is 4500289942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499820051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624955012 + ... + 624955015.

It is an arithmetic number, because the mean of its divisors is an integer number (937432521).

Almost surely, 2^2499820054 is an apocalyptic number.

2499820054 is a deficient number, since it is larger than the sum of its proper divisors (1249910030).

2499820054 is a wasteful number, since it uses less digits than its factorization.

2499820054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249910029.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2499820054 is about 49998.2005076183. The cubic root of 2499820054 is about 1357.1762442766.

The spelling of 2499820054 in words is "two billion, four hundred ninety-nine million, eight hundred twenty thousand, fifty-four".