407525641 has 4 divisors (see below), whose sum is σ = 407566852. Its totient is φ = 407484432.

The previous prime is 407525633. The next prime is 407525647. The reversal of 407525641 is 146525704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 339628041 = 8240^2 + 18429^2 .

It is a cyclic number.

It is not a de Polignac number, because 407525641 - 2³ = 407525633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 407525597 and 407525606.

It is not an unprimeable number, because it can be changed into a prime (407525647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4111 + ... + 28843.

It is an arithmetic number, because the mean of its divisors is an integer number (101891713).

Almost surely, 2^407525641 is an apocalyptic number.

It is an amenable number.

407525641 is a deficient number, since it is larger than the sum of its proper divisors (41211).

407525641 is a wasteful number, since it uses less digits than its factorization.

407525641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41210.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 407525641 is about 20187.2643267977. The cubic root of 407525641 is about 741.3984033264.

The spelling of 407525641 in words is "four hundred seven million, five hundred twenty-five thousand, six hundred forty-one".