25066370420 has 72 divisors (see below), whose sum is σ = 65943869544. Its totient is φ = 7933089024.

The previous prime is 25066370419. The next prime is 25066370467. The reversal of 25066370420 is 2407366052.

It can be written as a sum of positive squares in 4 ways, for example, as 12545764 + 25053824656 = 3542^2 + 158284^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 971027 + ... + 996506.

It is an arithmetic number, because the mean of its divisors is an integer number (915887077).

Almost surely, 2^25066370420 is an apocalyptic number.

25066370420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25066370420 is an abundant number, since it is smaller than the sum of its proper divisors (40877499124).

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

25066370420 is a wasteful number, since it uses less digits than its factorization.

25066370420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967569 (or 1967560 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 25066370420 in words is "twenty-five billion, sixty-six million, three hundred seventy thousand, four hundred twenty".