45654521 has 4 divisors (see below), whose sum is σ = 49804944. Its totient is φ = 41504100.

The previous prime is 45654509. The next prime is 45654523. The reversal of 45654521 is 12545654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45654521 - 2⁶ = 45654457 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45654523) 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, 2075195 + ... + 2075216.

It is an arithmetic number, because the mean of its divisors is an integer number (12451236).

Almost surely, 2^45654521 is an apocalyptic number.

It is an amenable number.

45654521 is a deficient number, since it is larger than the sum of its proper divisors (4150423).

45654521 is a wasteful number, since it uses less digits than its factorization.

45654521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150422.

The product of its digits is 24000, while the sum is 32.

The square root of 45654521 is about 6756.8129321449. The cubic root of 45654521 is about 357.4055264081.

The spelling of 45654521 in words is "forty-five million, six hundred fifty-four thousand, five hundred twenty-one".