55154040 has 64 divisors (see below), whose sum is σ = 165987360. Its totient is φ = 14661120.

The previous prime is 55154039. The next prime is 55154041. The reversal of 55154040 is 4045155.

55154040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55154039) and next prime (55154041).

It is a super-3 number, since 3×55154040³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 55154040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55154041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 54822 + ... + 55818.

Almost surely, 2^55154040 is an apocalyptic number.

It is an amenable number.

55154040 is an abundant number, since it is smaller than the sum of its proper divisors (110833320).

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

55154040 is a wasteful number, since it uses less digits than its factorization.

55154040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55154040 is about 7426.5766002917. The cubic root of 55154040 is about 380.6499495618.

Adding to 55154040 its reverse (4045155), we get a palindrome (59199195).

The spelling of 55154040 in words is "fifty-five million, one hundred fifty-four thousand, forty".