45245520 has 80 divisors (see below), whose sum is σ = 155853120. Its totient is φ = 12064896.

The previous prime is 45245513. The next prime is 45245521. The reversal of 45245520 is 2554254.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45245521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8314 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (1948164).

Almost surely, 2^45245520 is an apocalyptic number.

45245520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45245520 is an abundant number, since it is smaller than the sum of its proper divisors (110607600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45245520 is a wasteful number, since it uses less digits than its factorization.

45245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20969 (or 20957 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 45245520 is about 6726.4790195168. The cubic root of 45245520 is about 356.3350378714.

Adding to 45245520 its reverse (2554254), we get a palindrome (47799774).

The spelling of 45245520 in words is "forty-five million, two hundred forty-five thousand, five hundred twenty".