2045225401 has 2 divisors, whose sum is σ = 2045225402. Its totient is φ = 2045225400.

The previous prime is 2045225387. The next prime is 2045225411. The reversal of 2045225401 is 1045225402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2042588025 + 2637376 = 45195^2 + 1624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045225401 - 2²⁷ = 1911007673 is a prime.

It is a super-2 number, since 2×2045225401² = 8365893881791221602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045225411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022612700 + 1022612701.

It is an arithmetic number, because the mean of its divisors is an integer number (1022612701).

Almost surely, 2^2045225401 is an apocalyptic number.

It is an amenable number.

2045225401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045225401 is an equidigital number, since it uses as much as digits as its factorization.

2045225401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2045225401 is about 45224.1683284502. The cubic root of 2045225401 is about 1269.3470926325.

Subtracting from 2045225401 its reverse (1045225402), we obtain a palindrome (999999999).

The spelling of 2045225401 in words is "two billion, forty-five million, two hundred twenty-five thousand, four hundred one".