54435039991 has 2 divisors, whose sum is σ = 54435039992. Its totient is φ = 54435039990.

The previous prime is 54435039979. The next prime is 54435040003. The reversal of 54435039991 is 19993053445.

It is a balanced prime because it is at equal distance from previous prime (54435039979) and next prime (54435040003).

It is a cyclic number.

It is not a de Polignac number, because 54435039991 - 2⁵ = 54435039959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54435039931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27217519995 + 27217519996.

It is an arithmetic number, because the mean of its divisors is an integer number (27217519996).

Almost surely, 2^54435039991 is an apocalyptic number.

54435039991 is a deficient number, since it is larger than the sum of its proper divisors (1).

54435039991 is an equidigital number, since it uses as much as digits as its factorization.

54435039991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 54435039991 in words is "fifty-four billion, four hundred thirty-five million, thirty-nine thousand, nine hundred ninety-one".