25702378032 has 20 divisors (see below), whose sum is σ = 66397810040. Its totient is φ = 8567459328.

The previous prime is 25702378027. The next prime is 25702378033. The reversal of 25702378032 is 23087320752.

It is a super-2 number, since 2×25702378032² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25702378033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267733057 + ... + 267733152.

It is an arithmetic number, because the mean of its divisors is an integer number (3319890502).

Almost surely, 2^25702378032 is an apocalyptic number.

It is an amenable number.

25702378032 is an abundant number, since it is smaller than the sum of its proper divisors (40695432008).

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

25702378032 is a wasteful number, since it uses less digits than its factorization.

25702378032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535466220 (or 535466214 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

Adding to 25702378032 its reverse (23087320752), we get a palindrome (48789698784).

The spelling of 25702378032 in words is "twenty-five billion, seven hundred two million, three hundred seventy-eight thousand, thirty-two".