51420088 has 64 divisors (see below), whose sum is σ = 105557760. Its totient is φ = 23417856.

The previous prime is 51420079. The next prime is 51420097. The reversal of 51420088 is 88002415.

It is an interprime number because it is at equal distance from previous prime (51420079) and next prime (51420097).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530056 + ... + 530152.

It is an arithmetic number, because the mean of its divisors is an integer number (1649340).

Almost surely, 2^51420088 is an apocalyptic number.

It is an amenable number.

51420088 is an abundant number, since it is smaller than the sum of its proper divisors (54137672).

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

51420088 is a wasteful number, since it uses less digits than its factorization.

51420088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 51420088 is about 7170.7801528146. The cubic root of 51420088 is about 371.8584075924.

It can be divided in two parts, 514 and 20088, that added together give a palindrome (20602).

The spelling of 51420088 in words is "fifty-one million, four hundred twenty thousand, eighty-eight".