51245465 has 16 divisors (see below), whose sum is σ = 65102400. Its totient is φ = 38657472.

The previous prime is 51245461. The next prime is 51245471. The reversal of 51245465 is 56454215.

It is a cyclic number.

It is not a de Polignac number, because 51245465 - 2² = 51245461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51245461) 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, 2126 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (4068900).

Almost surely, 2^51245465 is an apocalyptic number.

It is an amenable number.

51245465 is a deficient number, since it is larger than the sum of its proper divisors (13856935).

51245465 is a wasteful number, since it uses less digits than its factorization.

51245465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296.

The product of its digits is 24000, while the sum is 32.

The square root of 51245465 is about 7158.5937864919. The cubic root of 51245465 is about 371.4369855448.

The spelling of 51245465 in words is "fifty-one million, two hundred forty-five thousand, four hundred sixty-five".