25790545 has 24 divisors (see below), whose sum is σ = 34780032. Its totient is φ = 18337440.

The previous prime is 25790473. The next prime is 25790549. The reversal of 25790545 is 54509752.

It is not a de Polignac number, because 25790545 - 2⁷ = 25790417 is a prime.

It is a super-2 number, since 2×25790545² = 1330304422794050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25790549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27982 + ... + 28888.

It is an arithmetic number, because the mean of its divisors is an integer number (1449168).

Almost surely, 2^25790545 is an apocalyptic number.

It is an amenable number.

25790545 is a deficient number, since it is larger than the sum of its proper divisors (8989487).

25790545 is a wasteful number, since it uses less digits than its factorization.

25790545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 25790545 is about 5078.4392287395. The cubic root of 25790545 is about 295.4519358421.

It can be divided in two parts, 25790 and 545, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 25790545 in words is "twenty-five million, seven hundred ninety thousand, five hundred forty-five".