51888870 has 64 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 12578400.

The previous prime is 51888853. The next prime is 51888871. The reversal of 51888870 is 7888815.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5766 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^51888870 is an apocalyptic number.

51888870 is an abundant number, since it is smaller than the sum of its proper divisors (99069210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51888870 is a wasteful number, since it uses less digits than its factorization.

51888870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17498 (or 17492 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The square root of 51888870 is about 7203.3929505477. The cubic root of 51888870 is about 372.9850324742.

The spelling of 51888870 in words is "fifty-one million, eight hundred eighty-eight thousand, eight hundred seventy".