45225394 has 4 divisors (see below), whose sum is σ = 67838094. Its totient is φ = 22612696.

The previous prime is 45225391. The next prime is 45225403. The reversal of 45225394 is 49352254.

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

It can be written as a sum of positive squares in only one way, i.e., 38900169 + 6325225 = 6237^2 + 2515^2 .

It is not an unprimeable number, because it can be changed into a prime (45225391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11306347 + ... + 11306350.

Almost surely, 2^45225394 is an apocalyptic number.

45225394 is a deficient number, since it is larger than the sum of its proper divisors (22612700).

45225394 is a wasteful number, since it uses less digits than its factorization.

45225394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22612699.

The product of its digits is 43200, while the sum is 34.

The square root of 45225394 is about 6724.9828252569. The cubic root of 45225394 is about 356.2821953462.

The spelling of 45225394 in words is "forty-five million, two hundred twenty-five thousand, three hundred ninety-four".