51861462 has 8 divisors (see below), whose sum is σ = 103722936. Its totient is φ = 17287152.

The previous prime is 51861451. The next prime is 51861493. The reversal of 51861462 is 26416815.

It is a sphenic number, since it is the product of 3 distinct primes.

51861462 is an admirable number.

It is a super-2 number, since 2×51861462² = 5379222481554888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4321783 + ... + 4321794.

It is an arithmetic number, because the mean of its divisors is an integer number (12965367).

Almost surely, 2^51861462 is an apocalyptic number.

51861462 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51861462 is a wasteful number, since it uses less digits than its factorization.

51861462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643582.

The product of its digits is 11520, while the sum is 33.

The square root of 51861462 is about 7201.4902624387. The cubic root of 51861462 is about 372.9193499608.

The spelling of 51861462 in words is "fifty-one million, eight hundred sixty-one thousand, four hundred sixty-two".