2561426153 has 8 divisors (see below), whose sum is σ = 3009228096. Its totient is φ = 2149448400.

The previous prime is 2561426149. The next prime is 2561426183. The reversal of 2561426153 is 3516241652.

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

It is not a de Polignac number, because 2561426153 - 2² = 2561426149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2561426183) 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, 8955893 + ... + 8956178.

It is an arithmetic number, because the mean of its divisors is an integer number (376153512).

Almost surely, 2^2561426153 is an apocalyptic number.

It is an amenable number.

2561426153 is a deficient number, since it is larger than the sum of its proper divisors (447801943).

2561426153 is a wasteful number, since it uses less digits than its factorization.

2561426153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17912095.

The product of its digits is 43200, while the sum is 35.

The square root of 2561426153 is about 50610.5340121995. The cubic root of 2561426153 is about 1368.2347401132.

The spelling of 2561426153 in words is "two billion, five hundred sixty-one million, four hundred twenty-six thousand, one hundred fifty-three".