45075520 has 56 divisors (see below), whose sum is σ = 122675904. Its totient is φ = 15453696.

The previous prime is 45075479. The next prime is 45075539. The reversal of 45075520 is 2557054.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7822 + ... + 12301.

Almost surely, 2^45075520 is an apocalyptic number.

45075520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45075520 is an abundant number, since it is smaller than the sum of its proper divisors (77600384).

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

45075520 is a wasteful number, since it uses less digits than its factorization.

45075520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20147 (or 20137 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 45075520 is about 6713.8305012861. The cubic root of 45075520 is about 355.8881944906. Note that the first 3 decimals are identical.

It can be divided in two parts, 450755 and 20, that added together give a triangular number (450775 = T₉₄₉).

The spelling of 45075520 in words is "forty-five million, seventy-five thousand, five hundred twenty".