55401236747 has 2 divisors, whose sum is σ = 55401236748. Its totient is φ = 55401236746.

The previous prime is 55401236731. The next prime is 55401236749. The reversal of 55401236747 is 74763210455.

It is a happy number.

55401236747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55401236747 - 2⁴ = 55401236731 is a prime.

Together with 55401236749, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55401236698 and 55401236707.

It is not a weakly prime, because it can be changed into another prime (55401236749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27700618373 + 27700618374.

It is an arithmetic number, because the mean of its divisors is an integer number (27700618374).

Almost surely, 2^55401236747 is an apocalyptic number.

55401236747 is a deficient number, since it is larger than the sum of its proper divisors (1).

55401236747 is an equidigital number, since it uses as much as digits as its factorization.

55401236747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 55401236747 in words is "fifty-five billion, four hundred one million, two hundred thirty-six thousand, seven hundred forty-seven".