2565270126 has 12 divisors (see below), whose sum is σ = 5558085312. Its totient is φ = 855090036.

The previous prime is 2565270107. The next prime is 2565270143. The reversal of 2565270126 is 6210725652.

2565270126 is a `hidden beast` number, since 2 + 5 + 6 + 527 + 0 + 126 = 666.

It is a super-2 number, since 2×2565270126² = 13161221638696111752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71257486 + ... + 71257521.

It is an arithmetic number, because the mean of its divisors is an integer number (463173776).

Almost surely, 2^2565270126 is an apocalyptic number.

2565270126 is an abundant number, since it is smaller than the sum of its proper divisors (2992815186).

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

2565270126 is a wasteful number, since it uses less digits than its factorization.

2565270126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142515015 (or 142515012 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2565270126 is about 50648.4957920766. The cubic root of 2565270126 is about 1368.9188418976.

Adding to 2565270126 its reverse (6210725652), we get a palindrome (8775995778).

It can be divided in two parts, 2565 and 270126, that added together give a triangular number (272691 = T₇₃₈).

The spelling of 2565270126 in words is "two billion, five hundred sixty-five million, two hundred seventy thousand, one hundred twenty-six".