245543500 has 48 divisors (see below), whose sum is σ = 540277920. Its totient is φ = 97483200.

The previous prime is 245543497. The next prime is 245543503. The reversal of 245543500 is 5345542.

It is an interprime number because it is at equal distance from previous prime (245543497) and next prime (245543503).

It is a super-2 number, since 2×245543500² = 120583220784500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245543503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67734 + ... + 71266.

It is an arithmetic number, because the mean of its divisors is an integer number (11255790).

Almost surely, 2^245543500 is an apocalyptic number.

245543500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245543500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270138960).

245543500 is an abundant number, since it is smaller than the sum of its proper divisors (294734420).

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

245543500 is a wasteful number, since it uses less digits than its factorization.

245543500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691 (or 3679 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 245543500 is about 15669.8276952875. The cubic root of 245543500 is about 626.1948343378.

The spelling of 245543500 in words is "two hundred forty-five million, five hundred forty-three thousand, five hundred".