401099055 has 96 divisors (see below), whose sum is σ = 786829824. Its totient is φ = 174254976.

The previous prime is 401099053. The next prime is 401099057. The reversal of 401099055 is 550990104.

It is an interprime number because it is at equal distance from previous prime (401099053) and next prime (401099057).

It is not a de Polignac number, because 401099055 - 2¹ = 401099053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401099053) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9327864 + ... + 9327906.

It is an arithmetic number, because the mean of its divisors is an integer number (8196144).

Almost surely, 2^401099055 is an apocalyptic number.

401099055 is a deficient number, since it is larger than the sum of its proper divisors (385730769).

401099055 is an frugal number, since it uses more digits than its factorization.

401099055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 401099055 is about 20027.4575271051. The cubic root of 401099055 is about 737.4805081509.

Subtracting 401099055 from its reverse (550990104), we obtain a square (149891049 = 12243²).

The spelling of 401099055 in words is "four hundred one million, ninety-nine thousand, fifty-five".