2557725106 has 8 divisors (see below), whose sum is σ = 4062269340. Its totient is φ = 1203635328.

The previous prime is 2557725083. The next prime is 2557725139. The reversal of 2557725106 is 6015277552.

2557725106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2214549481 + 343175625 = 47059^2 + 18525^2 .

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

It is a super-2 number, since 2×2557725106² = 13083915435725422472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37613571 + ... + 37613638.

Almost surely, 2^2557725106 is an apocalyptic number.

2557725106 is a deficient number, since it is larger than the sum of its proper divisors (1504544234).

2557725106 is a wasteful number, since it uses less digits than its factorization.

2557725106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75227228.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 2557725106 is about 50573.9567959637. The cubic root of 2557725106 is about 1367.5754274609.

The spelling of 2557725106 in words is "two billion, five hundred fifty-seven million, seven hundred twenty-five thousand, one hundred six".