264402425 has 48 divisors (see below), whose sum is σ = 395331840. Its totient is φ = 171575040.

The previous prime is 264402421. The next prime is 264402431. The reversal of 264402425 is 524204462.

It is not a de Polignac number, because 264402425 - 2² = 264402421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (264402421) 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, 268484 + ... + 269466.

It is an arithmetic number, because the mean of its divisors is an integer number (8236080).

Almost surely, 2^264402425 is an apocalyptic number.

264402425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264402425 is a deficient number, since it is larger than the sum of its proper divisors (130929415).

264402425 is a wasteful number, since it uses less digits than its factorization.

264402425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 264402425 is about 16260.4558669184. The cubic root of 264402425 is about 641.8326580927.

Adding to 264402425 its reverse (524204462), we get a palindrome (788606887).

The spelling of 264402425 in words is "two hundred sixty-four million, four hundred two thousand, four hundred twenty-five".