245515300 has 36 divisors (see below), whose sum is σ = 535570756. Its totient is φ = 97689600.

The previous prime is 245515261. The next prime is 245515307. The reversal of 245515300 is 3515542.

It can be written as a sum of positive squares in 6 ways, for example, as 968256 + 244547044 = 984^2 + 15638^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (245515307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12940 + ... + 25660.

Almost surely, 2^245515300 is an apocalyptic number.

245515300 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 245515300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267785378).

245515300 is an abundant number, since it is smaller than the sum of its proper divisors (290055456).

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

245515300 is a wasteful number, since it uses less digits than its factorization.

245515300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928 (or 12921 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 245515300 is about 15668.9278510050. The cubic root of 245515300 is about 626.1708611649.

The spelling of 245515300 in words is "two hundred forty-five million, five hundred fifteen thousand, three hundred".