45420025 has 24 divisors (see below), whose sum is σ = 64620864. Its totient is φ = 31022400.

The previous prime is 45420017. The next prime is 45420043. The reversal of 45420025 is 52002454.

It is not a de Polignac number, because 45420025 - 2³ = 45420017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45419978 and 45420005.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80394 + ... + 80956.

It is an arithmetic number, because the mean of its divisors is an integer number (2692536).

Almost surely, 2^45420025 is an apocalyptic number.

It is an amenable number.

45420025 is a deficient number, since it is larger than the sum of its proper divisors (19200839).

45420025 is a wasteful number, since it uses less digits than its factorization.

45420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 45420025 is about 6739.4380329520. The cubic root of 45420025 is about 356.7925599582.

Adding to 45420025 its reverse (52002454), we get a palindrome (97422479).

The spelling of 45420025 in words is "forty-five million, four hundred twenty thousand, twenty-five".