25773480 has 48 divisors (see below), whose sum is σ = 83764980. Its totient is φ = 6872832.

The previous prime is 25773467. The next prime is 25773499. The reversal of 25773480 is 8437752.

25773480 is a `hidden beast` number, since 2 + 577 + 3 + 4 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25462116 + 311364 = 5046^2 + 558^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35437 + ... + 36156.

Almost surely, 2^25773480 is an apocalyptic number.

25773480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25773480 is an abundant number, since it is smaller than the sum of its proper divisors (57991500).

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

25773480 is a wasteful number, since it uses less digits than its factorization.

25773480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71610 (or 71603 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 25773480 is about 5076.7588085313. The cubic root of 25773480 is about 295.3867569206.

It can be divided in two parts, 257 and 73480, that added together give a palindrome (73737).

The spelling of 25773480 in words is "twenty-five million, seven hundred seventy-three thousand, four hundred eighty".