45125520 has 80 divisors (see below), whose sum is σ = 152615232. Its totient is φ = 10938880.

The previous prime is 45125519. The next prime is 45125569. The reversal of 45125520 is 2552154.

It is a happy number.

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 (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5907 + ... + 11186.

Almost surely, 2^45125520 is an apocalyptic number.

45125520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45125520 is an abundant number, since it is smaller than the sum of its proper divisors (107489712).

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

45125520 is a wasteful number, since it uses less digits than its factorization.

45125520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17120 (or 17114 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 45125520 is about 6717.5531259529. The cubic root of 45125520 is about 356.0197354712.

Adding to 45125520 its reverse (2552154), we get a palindrome (47677674).

The spelling of 45125520 in words is "forty-five million, one hundred twenty-five thousand, five hundred twenty".