305379025 has 36 divisors (see below), whose sum is σ = 445602060. Its totient is φ = 206976000.

The previous prime is 305379017. The next prime is 305379049. The reversal of 305379025 is 520973503.

It can be written as a sum of positive squares in 6 ways, for example, as 27123264 + 278255761 = 5208^2 + 16681^2 .

It is not a de Polignac number, because 305379025 - 2³ = 305379017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 107625 + ... + 110425.

It is an arithmetic number, because the mean of its divisors is an integer number (12377835).

Almost surely, 2^305379025 is an apocalyptic number.

305379025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

305379025 is a deficient number, since it is larger than the sum of its proper divisors (140223035).

305379025 is a wasteful number, since it uses less digits than its factorization.

305379025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 305379025 is about 17475.0972815604. The cubic root of 305379025 is about 673.4102689323.

The spelling of 305379025 in words is "three hundred five million, three hundred seventy-nine thousand, twenty-five".