401625455 has 16 divisors (see below), whose sum is σ = 600873984. Its totient is φ = 250363680.

The previous prime is 401625443. The next prime is 401625509. The reversal of 401625455 is 554526104.

It is not a de Polignac number, because 401625455 - 2¹² = 401621359 is a prime.

It is a super-2 number, since 2×401625455² = 322606012207914050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521207 + ... + 521976.

It is an arithmetic number, because the mean of its divisors is an integer number (37554624).

Almost surely, 2^401625455 is an apocalyptic number.

401625455 is a deficient number, since it is larger than the sum of its proper divisors (199248529).

401625455 is a wasteful number, since it uses less digits than its factorization.

401625455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043206.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 401625455 is about 20040.5951757926. The cubic root of 401625455 is about 737.8029887870.

The spelling of 401625455 in words is "four hundred one million, six hundred twenty-five thousand, four hundred fifty-five".