6401275 has 12 divisors (see below), whose sum is σ = 8015112. Its totient is φ = 5071040.

The previous prime is 6401273. The next prime is 6401293. The reversal of 6401275 is 5721046.

It is not a de Polignac number, because 6401275 - 2¹ = 6401273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1479 + ... + 3871.

It is an arithmetic number, because the mean of its divisors is an integer number (667926).

Almost surely, 2^6401275 is an apocalyptic number.

6401275 is a deficient number, since it is larger than the sum of its proper divisors (1613837).

6401275 is a wasteful number, since it uses less digits than its factorization.

6401275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 6401275 is about 2530.0741095865. The cubic root of 6401275 is about 185.6758817462.

The spelling of 6401275 in words is "six million, four hundred one thousand, two hundred seventy-five".