2497550561 has 8 divisors (see below), whose sum is σ = 2734231584. Its totient is φ = 2262474720.

The previous prime is 2497550543. The next prime is 2497550567. The reversal of 2497550561 is 1650557942.

It is a happy number.

2497550561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2497550561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2497550567) 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, 398036 + ... + 404261.

It is an arithmetic number, because the mean of its divisors is an integer number (341778948).

Almost surely, 2^2497550561 is an apocalyptic number.

It is an amenable number.

2497550561 is a deficient number, since it is larger than the sum of its proper divisors (236681023).

2497550561 is a wasteful number, since it uses less digits than its factorization.

2497550561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802591.

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 2497550561 is about 49975.4996073076. The cubic root of 2497550561 is about 1356.7654100975.

The spelling of 2497550561 in words is "two billion, four hundred ninety-seven million, five hundred fifty thousand, five hundred sixty-one".