116400553 has 2 divisors, whose sum is σ = 116400554. Its totient is φ = 116400552.

The previous prime is 116400551. The next prime is 116400587. The reversal of 116400553 is 355004611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114126489 + 2274064 = 10683^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 116400553 - 2¹ = 116400551 is a prime.

Together with 116400551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (116400551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58200276 + 58200277.

It is an arithmetic number, because the mean of its divisors is an integer number (58200277).

Almost surely, 2^116400553 is an apocalyptic number.

It is an amenable number.

116400553 is a deficient number, since it is larger than the sum of its proper divisors (1).

116400553 is an equidigital number, since it uses as much as digits as its factorization.

116400553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 116400553 is about 10788.9087956104. The cubic root of 116400553 is about 488.2606008101.

The spelling of 116400553 in words is "one hundred sixteen million, four hundred thousand, five hundred fifty-three".