25771340 has 24 divisors (see below), whose sum is σ = 61851552. Its totient is φ = 8835840.

The previous prime is 25771331. The next prime is 25771357. The reversal of 25771340 is 4317752.

It is a super-4 number, since 4×25771340⁴ (a number of 31 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91901 + ... + 92180.

It is an arithmetic number, because the mean of its divisors is an integer number (2577148).

Almost surely, 2^25771340 is an apocalyptic number.

25771340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25771340 is an abundant number, since it is smaller than the sum of its proper divisors (36080212).

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

25771340 is a wasteful number, since it uses less digits than its factorization.

25771340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184097 (or 184095 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 25771340 is about 5076.5480397609. The cubic root of 25771340 is about 295.3785812667.

The spelling of 25771340 in words is "twenty-five million, seven hundred seventy-one thousand, three hundred forty".