51225035492 has 12 divisors (see below), whose sum is σ = 89646644976. Its totient is φ = 25611708360.

The previous prime is 51225035479. The next prime is 51225035497. The reversal of 51225035492 is 29453052215.

It is a super-2 number, since 2×51225035492² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51225035497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46634 + ... + 323457.

It is an arithmetic number, because the mean of its divisors is an integer number (7470553748).

Almost surely, 2^51225035492 is an apocalyptic number.

It is an amenable number.

51225035492 is a deficient number, since it is larger than the sum of its proper divisors (38421609484).

51225035492 is a wasteful number, since it uses less digits than its factorization.

51225035492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404698 (or 404696 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 51225035492 in words is "fifty-one billion, two hundred twenty-five million, thirty-five thousand, four hundred ninety-two".