45125503 has 4 divisors (see below), whose sum is σ = 45173808. Its totient is φ = 45077200.

The previous prime is 45125477. The next prime is 45125519. The reversal of 45125503 is 30552154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30552154 = 2 ⋅15276077.

It is a cyclic number.

It is not a de Polignac number, because 45125503 - 2²¹ = 43028351 is a prime.

It is a super-2 number, since 2×45125503² = 4072622042006018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45125573) 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, 22723 + ... + 24628.

It is an arithmetic number, because the mean of its divisors is an integer number (11293452).

Almost surely, 2^45125503 is an apocalyptic number.

45125503 is a deficient number, since it is larger than the sum of its proper divisors (48305).

45125503 is an equidigital number, since it uses as much as digits as its factorization.

45125503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48304.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 45125503 is about 6717.5518606111. The cubic root of 45125503 is about 356.0196907637.

Adding to 45125503 its reverse (30552154), we get a palindrome (75677657).

The spelling of 45125503 in words is "forty-five million, one hundred twenty-five thousand, five hundred three".