55596540 has 48 divisors (see below), whose sum is σ = 157116960. Its totient is φ = 14688000.

The previous prime is 55596521. The next prime is 55596551. The reversal of 55596540 is 4569555.

It is a congruent number.

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, 2290 + ... + 10790.

It is an arithmetic number, because the mean of its divisors is an integer number (3273270).

Almost surely, 2^55596540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55596540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78558480).

55596540 is an abundant number, since it is smaller than the sum of its proper divisors (101520420).

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

55596540 is a wasteful number, since it uses less digits than its factorization.

55596540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622 (or 8620 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 55596540 is about 7456.3087382431. The cubic root of 55596540 is about 381.6652220748.

The spelling of 55596540 in words is "fifty-five million, five hundred ninety-six thousand, five hundred forty".