401777425 has 24 divisors (see below), whose sum is σ = 570449600. Its totient is φ = 274985280.

The previous prime is 401777357. The next prime is 401777429. The reversal of 401777425 is 524777104.

It is not a de Polignac number, because 401777425 - 2⁹ = 401776913 is a prime.

It is a super-2 number, since 2×401777425² = 322850198479261250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401777429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106471 + ... + 110179.

Almost surely, 2^401777425 is an apocalyptic number.

It is an amenable number.

401777425 is a deficient number, since it is larger than the sum of its proper divisors (168672175).

401777425 is a wasteful number, since it uses less digits than its factorization.

401777425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 401777425 is about 20044.3863712512. The cubic root of 401777425 is about 737.8960354965.

The spelling of 401777425 in words is "four hundred one million, seven hundred seventy-seven thousand, four hundred twenty-five".