51942580 has 24 divisors (see below), whose sum is σ = 114821280. Its totient is φ = 19683360.

The previous prime is 51942557. The next prime is 51942601. The reversal of 51942580 is 8524915.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67966 + ... + 68725.

It is an arithmetic number, because the mean of its divisors is an integer number (4784220).

Almost surely, 2^51942580 is an apocalyptic number.

It is an amenable number.

51942580 is an abundant number, since it is smaller than the sum of its proper divisors (62878700).

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

51942580 is a wasteful number, since it uses less digits than its factorization.

51942580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136719 (or 136717 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 51942580 is about 7207.1200905771. The cubic root of 51942580 is about 373.1136799602.

The spelling of 51942580 in words is "fifty-one million, nine hundred forty-two thousand, five hundred eighty".