40523455 has 16 divisors (see below), whose sum is σ = 55678464. Its totient is φ = 27735840.

The previous prime is 40523453. The next prime is 40523477. The reversal of 40523455 is 55432504.

It is not a de Polignac number, because 40523455 - 2¹ = 40523453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40523453) 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, 35524 + ... + 36646.

It is an arithmetic number, because the mean of its divisors is an integer number (3479904).

Almost surely, 2^40523455 is an apocalyptic number.

40523455 is a deficient number, since it is larger than the sum of its proper divisors (15155009).

40523455 is a wasteful number, since it uses less digits than its factorization.

40523455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40523455 is about 6365.8035627877. The cubic root of 40523455 is about 343.4805544724.

Adding to 40523455 its reverse (55432504), we get a palindrome (95955959).

The spelling of 40523455 in words is "forty million, five hundred twenty-three thousand, four hundred fifty-five".