2549998725 has 72 divisors (see below), whose sum is σ = 4544405568. Its totient is φ = 1261209600.

The previous prime is 2549998723. The next prime is 2549998729. The reversal of 2549998725 is 5278999452.

It is not a de Polignac number, because 2549998725 - 2¹ = 2549998723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549998723) 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 71 ways as a sum of consecutive naturals, for example, 1538097 + ... + 1539753.

It is an arithmetic number, because the mean of its divisors is an integer number (63116744).

Almost surely, 2^2549998725 is an apocalyptic number.

2549998725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2549998725 is a deficient number, since it is larger than the sum of its proper divisors (1994406843).

2549998725 is a wasteful number, since it uses less digits than its factorization.

2549998725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1753 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 60.

The square root of 2549998725 is about 50497.5120674276. The cubic root of 2549998725 is about 1366.1969803477.

The spelling of 2549998725 in words is "two billion, five hundred forty-nine million, nine hundred ninety-eight thousand, seven hundred twenty-five".