25369251480 has 48 divisors (see below), whose sum is σ = 82450068480. Its totient is φ = 6765133632.

The previous prime is 25369251469. The next prime is 25369251491. The reversal of 25369251480 is 8415296352.

25369251480 is a `hidden beast` number, since 2 + 5 + 36 + 92 + 51 + 480 = 666.

It is an interprime number because it is at equal distance from previous prime (25369251469) and next prime (25369251491).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35234712 + ... + 35235431.

It is an arithmetic number, because the mean of its divisors is an integer number (1717709760).

Almost surely, 2^25369251480 is an apocalyptic number.

25369251480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25369251480 is an abundant number, since it is smaller than the sum of its proper divisors (57080817000).

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

25369251480 is a wasteful number, since it uses less digits than its factorization.

25369251480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70470160 (or 70470153 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 25369251480 in words is "twenty-five billion, three hundred sixty-nine million, two hundred fifty-one thousand, four hundred eighty".