400525601 has 8 divisors (see below), whose sum is σ = 458789760. Its totient is φ = 342523008.

The previous prime is 400525591. The next prime is 400525613. The reversal of 400525601 is 106525004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400525601 - 2¹⁰ = 400524577 is a prime.

It is a super-2 number, since 2×400525601² = 320841514112822402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400525651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62096 + ... + 68241.

It is an arithmetic number, because the mean of its divisors is an integer number (57348720).

Almost surely, 2^400525601 is an apocalyptic number.

It is an amenable number.

400525601 is a deficient number, since it is larger than the sum of its proper divisors (58264159).

400525601 is a wasteful number, since it uses less digits than its factorization.

400525601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130783.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 400525601 is about 20013.1357113272. The cubic root of 400525601 is about 737.1288802521.

The spelling of 400525601 in words is "four hundred million, five hundred twenty-five thousand, six hundred one".