51245224425 has 48 divisors (see below), whose sum is σ = 99094104000. Its totient is φ = 25892317440.

The previous prime is 51245224423. The next prime is 51245224441. The reversal of 51245224425 is 52442254215.

51245224425 is a `hidden beast` number, since 5 + 1 + 2 + 4 + 5 + 224 + 425 = 666.

It is not a de Polignac number, because 51245224425 - 2¹ = 51245224423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51245224425.

It is not an unprimeable number, because it can be changed into a prime (51245224423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1985040 + ... + 2010689.

It is an arithmetic number, because the mean of its divisors is an integer number (2064460500).

Almost surely, 2^51245224425 is an apocalyptic number.

It is an amenable number.

51245224425 is a deficient number, since it is larger than the sum of its proper divisors (47848879575).

51245224425 is a wasteful number, since it uses less digits than its factorization.

51245224425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995767 (or 3995756 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The spelling of 51245224425 in words is "fifty-one billion, two hundred forty-five million, two hundred twenty-four thousand, four hundred twenty-five".