2578930625 has 10 divisors (see below), whose sum is σ = 3222632490. Its totient is φ = 2063144000.

The previous prime is 2578930619. The next prime is 2578930639. The reversal of 2578930625 is 5260398752.

It can be written as a sum of positive squares in 5 ways, for example, as 1168477489 + 1410453136 = 34183^2 + 37556^2 .

It is not a de Polignac number, because 2578930625 - 2¹⁴ = 2578914241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2578930625.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2062520 + ... + 2063769.

It is an arithmetic number, because the mean of its divisors is an integer number (322263249).

Almost surely, 2^2578930625 is an apocalyptic number.

2578930625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2578930625 is a deficient number, since it is larger than the sum of its proper divisors (643701865).

2578930625 is an frugal number, since it uses more digits than its factorization.

2578930625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126309 (or 4126294 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 2578930625 is about 50783.1726559103. The cubic root of 2578930625 is about 1371.3444498124.

The spelling of 2578930625 in words is "two billion, five hundred seventy-eight million, nine hundred thirty thousand, six hundred twenty-five".