25534860 has 96 divisors (see below), whose sum is σ = 81096960. Its totient is φ = 5951232.

The previous prime is 25534849. The next prime is 25534897. The reversal of 25534860 is 6843552.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13959 + ... + 15681.

It is an arithmetic number, because the mean of its divisors is an integer number (844760).

Almost surely, 2^25534860 is an apocalyptic number.

25534860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25534860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40548480).

25534860 is an abundant number, since it is smaller than the sum of its proper divisors (55562100).

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

25534860 is a wasteful number, since it uses less digits than its factorization.

25534860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 25534860 is about 5053.2029446679. The cubic root of 25534860 is about 294.4723306790.

It can be divided in two parts, 255348 and 60, that multiplied together give a triangular number (15320880 = T₅₅₃₅).

The spelling of 25534860 in words is "twenty-five million, five hundred thirty-four thousand, eight hundred sixty".