40055554 has 32 divisors (see below), whose sum is σ = 77500800. Its totient is φ = 15066240.

The previous prime is 40055539. The next prime is 40055569. The reversal of 40055554 is 45555004.

It is an interprime number because it is at equal distance from previous prime (40055539) and next prime (40055569).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (2421900).

Almost surely, 2^40055554 is an apocalyptic number.

40055554 is a deficient number, since it is larger than the sum of its proper divisors (37445246).

40055554 is a wasteful number, since it uses less digits than its factorization.

40055554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 40055554 is about 6328.9457257904. The cubic root of 40055554 is about 342.1534427674.

It can be divided in two parts, 4005 and 5554, that added together give a palindrome (9559).

The spelling of 40055554 in words is "forty million, fifty-five thousand, five hundred fifty-four".