55529040 has 80 divisors (see below), whose sum is σ = 196737408. Its totient is φ = 12691968.

The previous prime is 55529027. The next prime is 55529053. The reversal of 55529040 is 4092555.

It is a happy number.

55529040 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 (55529027) and next prime (55529053).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55528989 and 55529007.

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 15 ways as a sum of consecutive naturals, for example, 14847 + ... + 18206.

Almost surely, 2^55529040 is an apocalyptic number.

It is an amenable number.

55529040 is an abundant number, since it is smaller than the sum of its proper divisors (141208368).

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

55529040 is a wasteful number, since it uses less digits than its factorization.

55529040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33076 (or 33070 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55529040 is about 7451.7809951716. The cubic root of 55529040 is about 381.5106990559.

The spelling of 55529040 in words is "fifty-five million, five hundred twenty-nine thousand, forty".