247553420 has 24 divisors (see below), whose sum is σ = 522774000. Its totient is φ = 98466752.

The previous prime is 247553419. The next prime is 247553447. The reversal of 247553420 is 24355742.

247553420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247553420² = 122565391507392800, which contains 22 as substring.

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, 30995 + ... + 38154.

It is an arithmetic number, because the mean of its divisors is an integer number (21782250).

Almost surely, 2^247553420 is an apocalyptic number.

247553420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247553420 is an abundant number, since it is smaller than the sum of its proper divisors (275220580).

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

247553420 is a wasteful number, since it uses less digits than its factorization.

247553420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69337 (or 69335 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 247553420 is about 15733.8304300002. The cubic root of 247553420 is about 627.8987862091.

The spelling of 247553420 in words is "two hundred forty-seven million, five hundred fifty-three thousand, four hundred twenty".