25620441 has 32 divisors (see below), whose sum is σ = 42882048. Its totient is φ = 13218240.

The previous prime is 25620433. The next prime is 25620443. The reversal of 25620441 is 14402652.

It is not a de Polignac number, because 25620441 - 2³ = 25620433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25620443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45226 + ... + 45788.

It is an arithmetic number, because the mean of its divisors is an integer number (1340064).

Almost surely, 2^25620441 is an apocalyptic number.

25620441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25620441 is a deficient number, since it is larger than the sum of its proper divisors (17261607).

25620441 is a wasteful number, since it uses less digits than its factorization.

25620441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 25620441 is about 5061.6638568755. The cubic root of 25620441 is about 294.8009420304.

The spelling of 25620441 in words is "twenty-five million, six hundred twenty thousand, four hundred forty-one".