51342456 has 32 divisors (see below), whose sum is σ = 140025600. Its totient is φ = 15558240.

The previous prime is 51342451. The next prime is 51342461. The reversal of 51342456 is 65424315.

It is an interprime number because it is at equal distance from previous prime (51342451) and next prime (51342461).

It is a super-2 number, since 2×51342456² = 5272095576223872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51342451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96976 + ... + 97503.

It is an arithmetic number, because the mean of its divisors is an integer number (4375800).

Almost surely, 2^51342456 is an apocalyptic number.

It is an amenable number.

51342456 is an abundant number, since it is smaller than the sum of its proper divisors (88683144).

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

51342456 is a wasteful number, since it uses less digits than its factorization.

51342456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194499 (or 194495 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 51342456 is about 7165.3650290826. The cubic root of 51342456 is about 371.6711743327.

The spelling of 51342456 in words is "fifty-one million, three hundred forty-two thousand, four hundred fifty-six".