45542647 has 4 divisors (see below), whose sum is σ = 46222456. Its totient is φ = 44862840.

The previous prime is 45542641. The next prime is 45542659. The reversal of 45542647 is 74624554.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45542647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45542641) 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, 339804 + ... + 339937.

It is an arithmetic number, because the mean of its divisors is an integer number (11555614).

Almost surely, 2^45542647 is an apocalyptic number.

45542647 is a deficient number, since it is larger than the sum of its proper divisors (679809).

45542647 is an equidigital number, since it uses as much as digits as its factorization.

45542647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679808.

The product of its digits is 134400, while the sum is 37.

The square root of 45542647 is about 6748.5292471768. The cubic root of 45542647 is about 357.1133531513.

The spelling of 45542647 in words is "forty-five million, five hundred forty-two thousand, six hundred forty-seven".