2549517042 has 64 divisors (see below), whose sum is σ = 5379960960. Its totient is φ = 804432384.

The previous prime is 2549517007. The next prime is 2549517077. The reversal of 2549517042 is 2407159452.

It is an interprime number because it is at equal distance from previous prime (2549517007) and next prime (2549517077).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3903988 + ... + 3904640.

It is an arithmetic number, because the mean of its divisors is an integer number (84061890).

Almost surely, 2^2549517042 is an apocalyptic number.

2549517042 is an abundant number, since it is smaller than the sum of its proper divisors (2830443918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2549517042 is a wasteful number, since it uses less digits than its factorization.

2549517042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2549517042 is about 50492.7424685964. The cubic root of 2549517042 is about 1366.1109521608.

The spelling of 2549517042 in words is "two billion, five hundred forty-nine million, five hundred seventeen thousand, forty-two".