55137763 has 2 divisors, whose sum is σ = 55137764. Its totient is φ = 55137762.

The previous prime is 55137757. The next prime is 55137773. The reversal of 55137763 is 36773155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55137763 is a prime.

It is not a weakly prime, because it can be changed into another prime (55137773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568881 + 27568882.

It is an arithmetic number, because the mean of its divisors is an integer number (27568882).

Almost surely, 2^55137763 is an apocalyptic number.

55137763 is a deficient number, since it is larger than the sum of its proper divisors (1).

55137763 is an equidigital number, since it uses as much as digits as its factorization.

55137763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 37.

The square root of 55137763 is about 7425.4806578430. The cubic root of 55137763 is about 380.6125002119.

The spelling of 55137763 in words is "fifty-five million, one hundred thirty-seven thousand, seven hundred sixty-three".