526720401 has 40 divisors (see below), whose sum is σ = 869387904. Its totient is φ = 316103040.

The previous prime is 526720361. The next prime is 526720429. The reversal of 526720401 is 104027625.

It is not a de Polignac number, because 526720401 - 2¹³ = 526712209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (526720501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23356 + ... + 39986.

Almost surely, 2^526720401 is an apocalyptic number.

526720401 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

526720401 is a deficient number, since it is larger than the sum of its proper divisors (342667503).

526720401 is a wasteful number, since it uses less digits than its factorization.

526720401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16683 (or 16674 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 526720401 is about 22950.3899966863. The cubic root of 526720401 is about 807.5945508752.

The spelling of 526720401 in words is "five hundred twenty-six million, seven hundred twenty thousand, four hundred one".