25030500780 has 24 divisors (see below), whose sum is σ = 70085402352. Its totient is φ = 6674800192.

The previous prime is 25030500773. The next prime is 25030500811. The reversal of 25030500780 is 8700503052.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208587447 + ... + 208587566.

It is an arithmetic number, because the mean of its divisors is an integer number (2920225098).

Almost surely, 2^25030500780 is an apocalyptic number.

25030500780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25030500780 is an abundant number, since it is smaller than the sum of its proper divisors (45054901572).

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

25030500780 is a wasteful number, since it uses less digits than its factorization.

25030500780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417175025 (or 417175023 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 25030500780 in words is "twenty-five billion, thirty million, five hundred thousand, seven hundred eighty".