2164801425 has 48 divisors (see below), whose sum is σ = 3716696640. Its totient is φ = 1110493440.

The previous prime is 2164801421. The next prime is 2164801427. The reversal of 2164801425 is 5241084612.

It is a happy number.

It is not a de Polignac number, because 2164801425 - 2² = 2164801421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164801421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 613767 + ... + 617283.

It is an arithmetic number, because the mean of its divisors is an integer number (77431180).

Almost surely, 2^2164801425 is an apocalyptic number.

2164801425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2164801425 is a deficient number, since it is larger than the sum of its proper divisors (1551895215).

2164801425 is a wasteful number, since it uses less digits than its factorization.

2164801425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842 (or 3837 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2164801425 is about 46527.4265890561. The cubic root of 2164801425 is about 1293.6179159888.

The spelling of 2164801425 in words is "two billion, one hundred sixty-four million, eight hundred one thousand, four hundred twenty-five".