45311225 has 6 divisors (see below), whose sum is σ = 56185950. Its totient is φ = 36248960.

The previous prime is 45311209. The next prime is 45311251. The reversal of 45311225 is 52211354.

It can be written as a sum of positive squares in 3 ways, for example, as 5822569 + 39488656 = 2413^2 + 6284^2 .

It is not a de Polignac number, because 45311225 - 2⁴ = 45311209 is a prime.

It is a super-2 number, since 2×45311225² = 4106214222001250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45311225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 906200 + ... + 906249.

It is an arithmetic number, because the mean of its divisors is an integer number (9364325).

Almost surely, 2^45311225 is an apocalyptic number.

It is an amenable number.

45311225 is a deficient number, since it is larger than the sum of its proper divisors (10874725).

45311225 is a wasteful number, since it uses less digits than its factorization.

45311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812459 (or 1812454 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 45311225 is about 6731.3613036295. The cubic root of 45311225 is about 356.5074429289.

Adding to 45311225 its reverse (52211354), we get a palindrome (97522579).

The spelling of 45311225 in words is "forty-five million, three hundred eleven thousand, two hundred twenty-five".