51389033025 has 24 divisors (see below), whose sum is σ = 92687130144. Its totient is φ = 24915894400.

The previous prime is 51389033023. The next prime is 51389033029. The reversal of 51389033025 is 52033098315.

51389033025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51389033025 - 2¹ = 51389033023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51389033021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31144044 + ... + 31145693.

It is an arithmetic number, because the mean of its divisors is an integer number (3861963756).

Almost surely, 2^51389033025 is an apocalyptic number.

51389033025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51389033025 is a deficient number, since it is larger than the sum of its proper divisors (41298097119).

51389033025 is a wasteful number, since it uses less digits than its factorization.

51389033025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62289761 (or 62289756 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 51389033025 in words is "fifty-one billion, three hundred eighty-nine million, thirty-three thousand, twenty-five".