51250004523 has 12 divisors (see below), whose sum is σ = 74085231480. Its totient is φ = 34140155616.

The previous prime is 51250004471. The next prime is 51250004537. The reversal of 51250004523 is 32540005215.

It is a happy number.

It is not a de Polignac number, because 51250004523 - 2⁶ = 51250004459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51250004593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2197261 + ... + 2220462.

It is an arithmetic number, because the mean of its divisors is an integer number (6173769290).

Almost surely, 2^51250004523 is an apocalyptic number.

51250004523 is a deficient number, since it is larger than the sum of its proper divisors (22835226957).

51250004523 is a wasteful number, since it uses less digits than its factorization.

51250004523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419018 (or 4419015 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 51250004523 its reverse (32540005215), we get a palindrome (83790009738).

The spelling of 51250004523 in words is "fifty-one billion, two hundred fifty million, four thousand, five hundred twenty-three".