425501855 has 4 divisors (see below), whose sum is σ = 510602232. Its totient is φ = 340401480.

The previous prime is 425501851. The next prime is 425501873. The reversal of 425501855 is 558105524.

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

It is not a de Polignac number, because 425501855 - 2² = 425501851 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 (425501851) 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, 42550181 + ... + 42550190.

It is an arithmetic number, because the mean of its divisors is an integer number (127650558).

Almost surely, 2^425501855 is an apocalyptic number.

425501855 is a deficient number, since it is larger than the sum of its proper divisors (85100377).

425501855 is an equidigital number, since it uses as much as digits as its factorization.

425501855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85100376.

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 425501855 is about 20627.6963086041. The cubic root of 425501855 is about 752.1431176368.

The spelling of 425501855 in words is "four hundred twenty-five million, five hundred one thousand, eight hundred fifty-five".