401199553 has 2 divisors, whose sum is σ = 401199554. Its totient is φ = 401199552.

The previous prime is 401199529. The next prime is 401199563. The reversal of 401199553 is 355991104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332442289 + 68757264 = 18233^2 + 8292^2 .

It is a cyclic number.

It is not a de Polignac number, because 401199553 - 2⁵ = 401199521 is a prime.

It is a super-2 number, since 2×401199553² = 321922162654799618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401199563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200599776 + 200599777.

It is an arithmetic number, because the mean of its divisors is an integer number (200599777).

Almost surely, 2^401199553 is an apocalyptic number.

It is an amenable number.

401199553 is a deficient number, since it is larger than the sum of its proper divisors (1).

401199553 is an equidigital number, since it uses as much as digits as its factorization.

401199553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 401199553 is about 20029.9663754086. The cubic root of 401199553 is about 737.5420965342.

The spelling of 401199553 in words is "four hundred one million, one hundred ninety-nine thousand, five hundred fifty-three".