425251001 has 4 divisors (see below), whose sum is σ = 486001152. Its totient is φ = 364500852.

The previous prime is 425250967. The next prime is 425251003. The reversal of 425251001 is 100152524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425251001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425251003) 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, 30375065 + ... + 30375078.

It is an arithmetic number, because the mean of its divisors is an integer number (121500288).

Almost surely, 2^425251001 is an apocalyptic number.

It is an amenable number.

425251001 is a deficient number, since it is larger than the sum of its proper divisors (60750151).

425251001 is an equidigital number, since it uses as much as digits as its factorization.

425251001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60750150.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 425251001 is about 20621.6148979657. The cubic root of 425251001 is about 751.9952802867.

The spelling of 425251001 in words is "four hundred twenty-five million, two hundred fifty-one thousand, one".