51223002465 has 16 divisors (see below), whose sum is σ = 82248471936. Its totient is φ = 27221712000.

The previous prime is 51223002463. The next prime is 51223002521. The reversal of 51223002465 is 56420032215.

It is not a de Polignac number, because 51223002465 - 2¹ = 51223002463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51223002463) 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, 6072061 + ... + 6080490.

It is an arithmetic number, because the mean of its divisors is an integer number (5140529496).

Almost surely, 2^51223002465 is an apocalyptic number.

It is an amenable number.

51223002465 is a deficient number, since it is larger than the sum of its proper divisors (31025469471).

51223002465 is a wasteful number, since it uses less digits than its factorization.

51223002465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12152840.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 51223002465 in words is "fifty-one billion, two hundred twenty-three million, two thousand, four hundred sixty-five".