45540252 has 48 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 14963760.

The previous prime is 45540251. The next prime is 45540259. The reversal of 45540252 is 25204554.

It is a super-3 number, since 3×45540252³ (a number of 24 digits) contains 333 as substring.

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 (45540251) 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, 4699 + ... + 10637.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^45540252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45540252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59875200).

45540252 is an abundant number, since it is smaller than the sum of its proper divisors (74210148).

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

45540252 is a wasteful number, since it uses less digits than its factorization.

45540252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023 (or 6015 counting only the distinct ones).

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

The square root of 45540252 is about 6748.3517987728. The cubic root of 45540252 is about 357.1070930740.

The spelling of 45540252 in words is "forty-five million, five hundred forty thousand, two hundred fifty-two".