2545225401 has 4 divisors (see below), whose sum is σ = 3393633872. Its totient is φ = 1696816932.

The previous prime is 2545225391. The next prime is 2545225411. The reversal of 2545225401 is 1045225452.

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 an interprime number because it is at equal distance from previous prime (2545225391) and next prime (2545225411).

It is not a de Polignac number, because 2545225401 - 2⁶ = 2545225337 is a prime.

It is a super-2 number, since 2×2545225401² = 12956344683791221602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545225411) 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, 424204231 + ... + 424204236.

It is an arithmetic number, because the mean of its divisors is an integer number (848408468).

Almost surely, 2^2545225401 is an apocalyptic number.

It is an amenable number.

2545225401 is a deficient number, since it is larger than the sum of its proper divisors (848408471).

2545225401 is an equidigital number, since it uses as much as digits as its factorization.

2545225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848408470.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2545225401 is about 50450.2269667838. The cubic root of 2545225401 is about 1365.3439898388.

The spelling of 2545225401 in words is "two billion, five hundred forty-five million, two hundred twenty-five thousand, four hundred one".