25055545 has 16 divisors (see below), whose sum is σ = 30748032. Its totient is φ = 19595520.

The previous prime is 25055491. The next prime is 25055557. The reversal of 25055545 is 54555052.

It is not a de Polignac number, because 25055545 - 2⁹ = 25055033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57649 + ... + 58081.

It is an arithmetic number, because the mean of its divisors is an integer number (1921752).

Almost surely, 2^25055545 is an apocalyptic number.

It is an amenable number.

25055545 is a deficient number, since it is larger than the sum of its proper divisors (5692487).

25055545 is a wasteful number, since it uses less digits than its factorization.

25055545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 25055545 is about 5005.5514181756. The cubic root of 25055545 is about 292.6181663937.

It can be divided in two parts, 25055 and 545, that added together give a square (25600 = 160²).

The spelling of 25055545 in words is "twenty-five million, fifty-five thousand, five hundred forty-five".