65261372 has 24 divisors (see below), whose sum is σ = 125238960. Its totient is φ = 29509760.

The previous prime is 65261369. The next prime is 65261387. The reversal of 65261372 is 27316256.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4904 + ... + 12432.

It is an arithmetic number, because the mean of its divisors is an integer number (5218290).

Almost surely, 2^65261372 is an apocalyptic number.

It is an amenable number.

65261372 is a deficient number, since it is larger than the sum of its proper divisors (59977588).

65261372 is a wasteful number, since it uses less digits than its factorization.

65261372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741 (or 7739 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 65261372 is about 8078.4510891631. The cubic root of 65261372 is about 402.6107808181.

Subtracting from 65261372 its reverse (27316256), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 65261372 in words is "sixty-five million, two hundred sixty-one thousand, three hundred seventy-two".