55511505615037 has 4 divisors (see below), whose sum is σ = 55511522682876. Its totient is φ = 55511488547200.

The previous prime is 55511505614987. The next prime is 55511505615047. The reversal of 55511505615037 is 73051650511555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17253148923481 + 38258356691556 = 4153691^2 + 6185334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55511505615037 is a prime.

It is a super-2 number, since 2×55511505615037² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511505615047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1974964 + ... + 10720237.

It is an arithmetic number, because the mean of its divisors is an integer number (13877880670719).

Almost surely, 2^{55511505615037} is an apocalyptic number.

It is an amenable number.

55511505615037 is a deficient number, since it is larger than the sum of its proper divisors (17067839).

55511505615037 is a wasteful number, since it uses less digits than its factorization.

55511505615037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067838.

The product of its (nonzero) digits is 1968750, while the sum is 49.

The spelling of 55511505615037 in words is "fifty-five trillion, five hundred eleven billion, five hundred five million, six hundred fifteen thousand, thirty-seven".