245640133025 has 48 divisors (see below), whose sum is σ = 355791477888. Its totient is φ = 164760960000.

The previous prime is 245640133001. The next prime is 245640133061. The reversal of 245640133025 is 520331046542.

245640133025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245640133025 - 2¹⁸ = 245639870881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1383305 + ... + 1550745.

It is an arithmetic number, because the mean of its divisors is an integer number (7412322456).

Almost surely, 2^245640133025 is an apocalyptic number.

245640133025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245640133025 is a deficient number, since it is larger than the sum of its proper divisors (110151344863).

245640133025 is a wasteful number, since it uses less digits than its factorization.

245640133025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167642 (or 167637 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 245640133025 its reverse (520331046542), we get a palindrome (765971179567).

The spelling of 245640133025 in words is "two hundred forty-five billion, six hundred forty million, one hundred thirty-three thousand, twenty-five".