45025381 has 4 divisors (see below), whose sum is σ = 45763564. Its totient is φ = 44287200.

The previous prime is 45025373. The next prime is 45025397. The reversal of 45025381 is 18352054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9205156 + 35820225 = 3034^2 + 5985^2 .

It is a cyclic number.

It is not a de Polignac number, because 45025381 - 2³ = 45025373 is a prime.

It is a super-2 number, since 2×45025381² = 4054569868390322, 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 (45025301) 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, 369000 + ... + 369121.

It is an arithmetic number, because the mean of its divisors is an integer number (11440891).

Almost surely, 2^45025381 is an apocalyptic number.

It is an amenable number.

45025381 is a deficient number, since it is larger than the sum of its proper divisors (738183).

45025381 is an equidigital number, since it uses as much as digits as its factorization.

45025381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738182.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 45025381 is about 6710.0954538665. The cubic root of 45025381 is about 355.7561901093.

The spelling of 45025381 in words is "forty-five million, twenty-five thousand, three hundred eighty-one".