325626511 has 18 divisors (see below), whose sum is σ = 391855392. Its totient is φ = 269521560.

The previous prime is 325626473. The next prime is 325626523. The reversal of 325626511 is 115626523.

It is a de Polignac number, because none of the positive numbers 2^k-325626511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325626811) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 703066 + ... + 703528.

It is an arithmetic number, because the mean of its divisors is an integer number (21769744).

Almost surely, 2^325626511 is an apocalyptic number.

325626511 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

325626511 is a deficient number, since it is larger than the sum of its proper divisors (66228881).

325626511 is an frugal number, since it uses more digits than its factorization.

325626511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 501 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 325626511 is about 18045.1242999321. The cubic root of 325626511 is about 687.9759426587.

Multiplying 325626511 by its sum of digits (31), we get a square (10094421841 = 100471²).

325626511 divided by its sum of digits (31) gives a square (10504081 = 3241²).

The spelling of 325626511 in words is "three hundred twenty-five million, six hundred twenty-six thousand, five hundred eleven".