225351001 has 6 divisors (see below), whose sum is σ = 237836202. Its totient is φ = 213490080.

The previous prime is 225350989. The next prime is 225351013. The reversal of 225351001 is 100153522.

It is an interprime number because it is at equal distance from previous prime (225350989) and next prime (225351013).

It can be written as a sum of positive squares in only one way, i.e., 136539225 + 88811776 = 11685^2 + 9424^2 .

It is not a de Polignac number, because 225351001 - 2²⁵ = 191796569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225351001.

It is not an unprimeable number, because it can be changed into a prime (225351701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311760 + ... + 312481.

It is an arithmetic number, because the mean of its divisors is an integer number (39639367).

Almost surely, 2^225351001 is an apocalyptic number.

It is an amenable number.

225351001 is a deficient number, since it is larger than the sum of its proper divisors (12485201).

225351001 is an equidigital number, since it uses as much as digits as its factorization.

225351001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624279 (or 624260 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 225351001 is about 15011.6954738630. The cubic root of 225351001 is about 608.5363106409.

The spelling of 225351001 in words is "two hundred twenty-five million, three hundred fifty-one thousand, one".