25355245245 has 32 divisors (see below), whose sum is σ = 44282816640. Its totient is φ = 12286122240.

The previous prime is 25355245217. The next prime is 25355245273. The reversal of 25355245245 is 54254255352.

It is an interprime number because it is at equal distance from previous prime (25355245217) and next prime (25355245273).

It is not a de Polignac number, because 25355245245 - 2¹⁷ = 25355114173 is a prime.

It is a super-2 number, since 2×25355245245² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25355245197 and 25355245206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237027 + ... + 326943.

It is an arithmetic number, because the mean of its divisors is an integer number (1383838020).

Almost surely, 2^25355245245 is an apocalyptic number.

It is an amenable number.

25355245245 is a deficient number, since it is larger than the sum of its proper divisors (18927571395).

25355245245 is a wasteful number, since it uses less digits than its factorization.

25355245245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91645.

The product of its digits is 1200000, while the sum is 42.

The spelling of 25355245245 in words is "twenty-five billion, three hundred fifty-five million, two hundred forty-five thousand, two hundred forty-five".