425015407 has 4 divisors (see below), whose sum is σ = 434058336. Its totient is φ = 415972480.

The previous prime is 425015359. The next prime is 425015441. The reversal of 425015407 is 704510524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425015407 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 (425012407) 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, 4521394 + ... + 4521487.

It is an arithmetic number, because the mean of its divisors is an integer number (108514584).

Almost surely, 2^425015407 is an apocalyptic number.

425015407 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

425015407 is a deficient number, since it is larger than the sum of its proper divisors (9042929).

425015407 is an equidigital number, since it uses as much as digits as its factorization.

425015407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042928.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 425015407 is about 20615.9017993393. The cubic root of 425015407 is about 751.8563832565.

The spelling of 425015407 in words is "four hundred twenty-five million, fifteen thousand, four hundred seven".