3545220025 has 24 divisors (see below), whose sum is σ = 4477615200. Its totient is φ = 2783721600.

The previous prime is 3545220017. The next prime is 3545220053. The reversal of 3545220025 is 5200225453.

It is not a de Polignac number, because 3545220025 - 2³ = 3545220017 is a prime.

It is a super-2 number, since 2×3545220025² = 25137170051322001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3545219975 and 3545220002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191790 + ... + 1194760.

It is an arithmetic number, because the mean of its divisors is an integer number (186567300).

Almost surely, 2^3545220025 is an apocalyptic number.

It is an amenable number.

3545220025 is a deficient number, since it is larger than the sum of its proper divisors (932395175).

3545220025 is a wasteful number, since it uses less digits than its factorization.

3545220025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849 (or 3844 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 3545220025 is about 59541.7502681942. The cubic root of 3545220025 is about 1524.8053177977.

Adding to 3545220025 its reverse (5200225453), we get a palindrome (8745445478).

The spelling of 3545220025 in words is "three billion, five hundred forty-five million, two hundred twenty thousand, twenty-five".