401055515 has 16 divisors (see below), whose sum is σ = 578968320. Its totient is φ = 260534880.

The previous prime is 401055511. The next prime is 401055533. The reversal of 401055515 is 515550104.

It is not a de Polignac number, because 401055515 - 2² = 401055511 is a prime.

It is a super-2 number, since 2×401055515² = 321691052223830450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401055511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300881 + ... + 302210.

It is an arithmetic number, because the mean of its divisors is an integer number (36185520).

Almost surely, 2^401055515 is an apocalyptic number.

401055515 is a deficient number, since it is larger than the sum of its proper divisors (177912805).

401055515 is a wasteful number, since it uses less digits than its factorization.

401055515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603122.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 401055515 is about 20026.3704899315. The cubic root of 401055515 is about 737.4538222547.

The spelling of 401055515 in words is "four hundred one million, fifty-five thousand, five hundred fifteen".