45525431 has 4 divisors (see below), whose sum is σ = 52029072. Its totient is φ = 39021792.

The previous prime is 45525421. The next prime is 45525449. The reversal of 45525431 is 13452554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45525431 - 2⁶ = 45525367 is a prime.

It is a super-2 number, since 2×45525431² = 4145129735471522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45525394 and 45525403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45525421) 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, 3251810 + ... + 3251823.

It is an arithmetic number, because the mean of its divisors is an integer number (13007268).

Almost surely, 2^45525431 is an apocalyptic number.

45525431 is a deficient number, since it is larger than the sum of its proper divisors (6503641).

45525431 is an equidigital number, since it uses as much as digits as its factorization.

45525431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503640.

The product of its digits is 12000, while the sum is 29.

The square root of 45525431 is about 6747.2535894244. The cubic root of 45525431 is about 357.0683488988.

Adding to 45525431 its reverse (13452554), we get a palindrome (58977985).

The spelling of 45525431 in words is "forty-five million, five hundred twenty-five thousand, four hundred thirty-one".