25052540340 has 24 divisors (see below), whose sum is σ = 70147113120. Its totient is φ = 6680677408.

The previous prime is 25052540339. The next prime is 25052540347. The reversal of 25052540340 is 4304525052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25052540298 and 25052540307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052540347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208771110 + ... + 208771229.

It is an arithmetic number, because the mean of its divisors is an integer number (2922796380).

Almost surely, 2^25052540340 is an apocalyptic number.

25052540340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25052540340 is an abundant number, since it is smaller than the sum of its proper divisors (45094572780).

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

25052540340 is a wasteful number, since it uses less digits than its factorization.

25052540340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417542351 (or 417542349 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 25052540340 in words is "twenty-five billion, fifty-two million, five hundred forty thousand, three hundred forty".