425991007 has 8 divisors (see below), whose sum is σ = 458929520. Its totient is φ = 393076800.

The previous prime is 425990993. The next prime is 425991011. The reversal of 425991007 is 700199524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425991007 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 (425911007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48619 + ... + 56707.

It is an arithmetic number, because the mean of its divisors is an integer number (57366190).

Almost surely, 2^425991007 is an apocalyptic number.

425991007 is a deficient number, since it is larger than the sum of its proper divisors (32938513).

425991007 is a wasteful number, since it uses less digits than its factorization.

425991007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 425991007 is about 20639.5495832637. The cubic root of 425991007 is about 752.4312255994.

It can be divided in two parts, 4259 and 91007, that added together give a triangular number (95266 = T₄₃₆).

The spelling of 425991007 in words is "four hundred twenty-five million, nine hundred ninety-one thousand, seven".