2500554749 has 8 divisors (see below), whose sum is σ = 3117574848. Its totient is φ = 1948484160.

The previous prime is 2500554731. The next prime is 2500554821. The reversal of 2500554749 is 9474550052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2500554749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500551749) 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, 16237292 + ... + 16237445.

It is an arithmetic number, because the mean of its divisors is an integer number (389696856).

Almost surely, 2^2500554749 is an apocalyptic number.

It is an amenable number.

2500554749 is a deficient number, since it is larger than the sum of its proper divisors (617020099).

2500554749 is a wasteful number, since it uses less digits than its factorization.

2500554749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32474755.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 2500554749 is about 50005.5471822877. The cubic root of 2500554749 is about 1357.3091889036.

The spelling of 2500554749 in words is "two billion, five hundred million, five hundred fifty-four thousand, seven hundred forty-nine".