675520401 has 16 divisors (see below), whose sum is σ = 908600000. Its totient is φ = 446404608.

The previous prime is 675520399. The next prime is 675520423. The reversal of 675520401 is 104025576.

It is not a de Polignac number, because 675520401 - 2¹ = 675520399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675520481) 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, 520185 + ... + 521481.

It is an arithmetic number, because the mean of its divisors is an integer number (56787500).

Almost surely, 2^675520401 is an apocalyptic number.

It is an amenable number.

675520401 is a deficient number, since it is larger than the sum of its proper divisors (233079599).

675520401 is a wasteful number, since it uses less digits than its factorization.

675520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 675520401 is about 25990.7753058657. The cubic root of 675520401 is about 877.4306949266.

Adding to 675520401 its reverse (104025576), we get a palindrome (779545977).

The spelling of 675520401 in words is "six hundred seventy-five million, five hundred twenty thousand, four hundred one".