55623230519 has 16 divisors (see below), whose sum is σ = 57370620384. Its totient is φ = 53894937600.

The previous prime is 55623230513. The next prime is 55623230549. The reversal of 55623230519 is 91503232655.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55623230519 is a prime.

It is a super-2 number, since 2×55623230519² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55623230513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14787599 + ... + 14791359.

It is an arithmetic number, because the mean of its divisors is an integer number (3585663774).

Almost surely, 2^55623230519 is an apocalyptic number.

55623230519 is a deficient number, since it is larger than the sum of its proper divisors (1747389865).

55623230519 is a wasteful number, since it uses less digits than its factorization.

55623230519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 55623230519 in words is "fifty-five billion, six hundred twenty-three million, two hundred thirty thousand, five hundred nineteen".