205625720 has 16 divisors (see below), whose sum is σ = 462657960. Its totient is φ = 82250272.

The previous prime is 205625711. The next prime is 205625729. The reversal of 205625720 is 27526502.

It is an interprime number because it is at equal distance from previous prime (205625711) and next prime (205625729).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205625729) 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, 2570282 + ... + 2570361.

Almost surely, 2^205625720 is an apocalyptic number.

205625720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205625720 is an abundant number, since it is smaller than the sum of its proper divisors (257032240).

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

205625720 is a wasteful number, since it uses less digits than its factorization.

205625720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140654 (or 5140650 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 205625720 is about 14339.6555049276. The cubic root of 205625720 is about 590.2361594098.

The spelling of 205625720 in words is "two hundred five million, six hundred twenty-five thousand, seven hundred twenty".