25353121652 has 24 divisors (see below), whose sum is σ = 44518317312. Its totient is φ = 12633667200.

The previous prime is 25353121643. The next prime is 25353121657. The reversal of 25353121652 is 25612135352.

It is a super-2 number, since 2×25353121652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25353121657) 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, 1709027 + ... + 1723797.

It is an arithmetic number, because the mean of its divisors is an integer number (1854929888).

Almost surely, 2^25353121652 is an apocalyptic number.

It is an amenable number.

25353121652 is a deficient number, since it is larger than the sum of its proper divisors (19165195660).

25353121652 is a wasteful number, since it uses less digits than its factorization.

25353121652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16199 (or 16197 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The spelling of 25353121652 in words is "twenty-five billion, three hundred fifty-three million, one hundred twenty-one thousand, six hundred fifty-two".