25304240241 has 16 divisors (see below), whose sum is σ = 42843158400. Its totient is φ = 14459565744.

The previous prime is 25304240219. The next prime is 25304240249. The reversal of 25304240241 is 14204240352.

25304240241 is a `hidden beast` number, since 253 + 0 + 4 + 2 + 402 + 4 + 1 = 666.

It is not a de Polignac number, because 25304240241 - 2¹³ = 25304232049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25304240249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66942246 + ... + 66942623.

It is an arithmetic number, because the mean of its divisors is an integer number (2677697400).

Almost surely, 2^25304240241 is an apocalyptic number.

25304240241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25304240241 is a deficient number, since it is larger than the sum of its proper divisors (17538918159).

25304240241 is a wasteful number, since it uses less digits than its factorization.

25304240241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133884885 (or 133884879 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 25304240241 its reverse (14204240352), we get a palindrome (39508480593).

The spelling of 25304240241 in words is "twenty-five billion, three hundred four million, two hundred forty thousand, two hundred forty-one".