55367540 has 24 divisors (see below), whose sum is σ = 119415912. Its totient is φ = 21548160.

The previous prime is 55367513. The next prime is 55367569. The reversal of 55367540 is 4576355.

It can be written as a sum of positive squares in 4 ways, for example, as 13868176 + 41499364 = 3724^2 + 6442^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55367540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36671 + ... + 38150.

It is an arithmetic number, because the mean of its divisors is an integer number (4975663).

Almost surely, 2^55367540 is an apocalyptic number.

It is an amenable number.

55367540 is an abundant number, since it is smaller than the sum of its proper divisors (64048372).

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

55367540 is a wasteful number, since it uses less digits than its factorization.

55367540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74867 (or 74865 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 55367540 is about 7440.9367689828. The cubic root of 55367540 is about 381.1404795152.

The spelling of 55367540 in words is "fifty-five million, three hundred sixty-seven thousand, five hundred forty".