247825020 has 48 divisors (see below), whose sum is σ = 695439360. Its totient is φ = 65941056.

The previous prime is 247825007. The next prime is 247825021. The reversal of 247825020 is 20528742.

247825020 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247825020² = 122834481076000800, which contains 22 as substring.

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

247825020 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247825021) 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, 24429 + ... + 33051.

It is an arithmetic number, because the mean of its divisors is an integer number (14488320).

Almost surely, 2^247825020 is an apocalyptic number.

247825020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247825020 is an abundant number, since it is smaller than the sum of its proper divisors (447614340).

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

247825020 is a wasteful number, since it uses less digits than its factorization.

247825020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114 (or 9112 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 247825020 is about 15742.4591471600. The cubic root of 247825020 is about 628.1283325978.

The spelling of 247825020 in words is "two hundred forty-seven million, eight hundred twenty-five thousand, twenty".