2658643425 has 24 divisors (see below), whose sum is σ = 4884027680. Its totient is φ = 1417942800.

The previous prime is 2658643423. The next prime is 2658643433. The reversal of 2658643425 is 5243468562.

2658643425 is a `hidden beast` number, since 2 + 6 + 586 + 43 + 4 + 25 = 666.

It is not a de Polignac number, because 2658643425 - 2¹ = 2658643423 is a prime.

It is a super-2 number, since 2×2658643425² = 14136769722591461250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2658643423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1968691 + ... + 1970040.

Almost surely, 2^2658643425 is an apocalyptic number.

2658643425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2658643425 is a deficient number, since it is larger than the sum of its proper divisors (2225384255).

2658643425 is a wasteful number, since it uses less digits than its factorization.

2658643425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938750 (or 3938739 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 2658643425 is about 51562.0347251735. The cubic root of 2658643425 is about 1385.3304003069.

The spelling of 2658643425 in words is "two billion, six hundred fifty-eight million, six hundred forty-three thousand, four hundred twenty-five".