45025531 has 4 divisors (see below), whose sum is σ = 45044872. Its totient is φ = 45006192.

The previous prime is 45025511. The next prime is 45025543. The reversal of 45025531 is 13552054.

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 45025531 - 2⁷ = 45025403 is a prime.

It is a super-2 number, since 2×45025531² = 4054596883663922, 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 = 45025496 and 45025505.

It is not an unprimeable number, because it can be changed into a prime (45025511) 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, 5610 + ... + 11023.

It is an arithmetic number, because the mean of its divisors is an integer number (11261218).

Almost surely, 2^45025531 is an apocalyptic number.

45025531 is a deficient number, since it is larger than the sum of its proper divisors (19341).

45025531 is a wasteful number, since it uses less digits than its factorization.

45025531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19340.

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

The square root of 45025531 is about 6710.1066310454. The cubic root of 45025531 is about 355.7565851707.

Adding to 45025531 its reverse (13552054), we get a palindrome (58577585).

The spelling of 45025531 in words is "forty-five million, twenty-five thousand, five hundred thirty-one".