40253550 has 48 divisors (see below), whose sum is σ = 100855152. Its totient is φ = 10624000.

The previous prime is 40253509. The next prime is 40253561. The reversal of 40253550 is 5535204.

40253550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40253550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13822 + ... + 16478.

It is an arithmetic number, because the mean of its divisors is an integer number (2101149).

Almost surely, 2^40253550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40253550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50427576).

40253550 is an abundant number, since it is smaller than the sum of its proper divisors (60601602).

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

40253550 is a wasteful number, since it uses less digits than its factorization.

40253550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773 (or 2768 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 40253550 is about 6344.5685432502. The cubic root of 40253550 is about 342.7162752158.

Adding to 40253550 its reverse (5535204), we get a palindrome (45788754).

The spelling of 40253550 in words is "forty million, two hundred fifty-three thousand, five hundred fifty".