2565453436 has 48 divisors (see below), whose sum is σ = 5529893824. Its totient is φ = 1014114816.

The previous prime is 2565453431. The next prime is 2565453461. The reversal of 2565453436 is 6343545652.

It is a junction number, because it is equal to n+sod(n) for n = 2565453392 and 2565453401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565453431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745576 + ... + 749008.

Almost surely, 2^2565453436 is an apocalyptic number.

2565453436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2565453436 is an abundant number, since it is smaller than the sum of its proper divisors (2964440388).

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

2565453436 is a wasteful number, since it uses less digits than its factorization.

2565453436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510 (or 5508 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 43.

The square root of 2565453436 is about 50650.3053890102. The cubic root of 2565453436 is about 1368.9514480202.

The spelling of 2565453436 in words is "two billion, five hundred sixty-five million, four hundred fifty-three thousand, four hundred thirty-six".