425243501 has 4 divisors (see below), whose sum is σ = 439907100. Its totient is φ = 410579904.

The previous prime is 425243477. The next prime is 425243537. The reversal of 425243501 is 105342524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75516100 + 349727401 = 8690^2 + 18701^2 .

It is a cyclic number.

It is not a de Polignac number, because 425243501 - 2²² = 421049197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425243561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331756 + ... + 7331813.

It is an arithmetic number, because the mean of its divisors is an integer number (109976775).

Almost surely, 2^425243501 is an apocalyptic number.

It is an amenable number.

425243501 is a deficient number, since it is larger than the sum of its proper divisors (14663599).

425243501 is a wasteful number, since it uses less digits than its factorization.

425243501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14663598.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 425243501 is about 20621.4330491360. The cubic root of 425243501 is about 751.9908593700.

The spelling of 425243501 in words is "four hundred twenty-five million, two hundred forty-three thousand, five hundred one".