25402243032 has 64 divisors (see below), whose sum is σ = 72063129600. Its totient is φ = 8287253280.

The previous prime is 25402243003. The next prime is 25402243037. The reversal of 25402243032 is 23034220452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25402242987 and 25402243005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402243037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240944 + ... + 1261247.

It is an arithmetic number, because the mean of its divisors is an integer number (1125986400).

Almost surely, 2^25402243032 is an apocalyptic number.

It is an amenable number.

25402243032 is an abundant number, since it is smaller than the sum of its proper divisors (46660886568).

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

25402243032 is a wasteful number, since it uses less digits than its factorization.

25402243032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502253 (or 2502243 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 25402243032 its reverse (23034220452), we get a palindrome (48436463484).

The spelling of 25402243032 in words is "twenty-five billion, four hundred two million, two hundred forty-three thousand, thirty-two".