51420294 has 12 divisors (see below), whose sum is σ = 111410676. Its totient is φ = 17140092.

The previous prime is 51420293. The next prime is 51420301. The reversal of 51420294 is 49202415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51420293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428324 + ... + 1428359.

It is an arithmetic number, because the mean of its divisors is an integer number (9284223).

Almost surely, 2^51420294 is an apocalyptic number.

51420294 is an abundant number, since it is smaller than the sum of its proper divisors (59990382).

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

51420294 is a wasteful number, since it uses less digits than its factorization.

51420294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856691 (or 2856688 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51420294 is about 7170.7945166488. The cubic root of 51420294 is about 371.8589041735.

The spelling of 51420294 in words is "fifty-one million, four hundred twenty thousand, two hundred ninety-four".