51442092 has 36 divisors (see below), whose sum is σ = 140038080. Its totient is φ = 15828192.

The previous prime is 51442091. The next prime is 51442109. The reversal of 51442092 is 29024415.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (51442091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54492 + ... + 55427.

Almost surely, 2^51442092 is an apocalyptic number.

51442092 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51442092 is an abundant number, since it is smaller than the sum of its proper divisors (88595988).

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

51442092 is a wasteful number, since it uses less digits than its factorization.

51442092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109942 (or 109937 counting only the distinct ones).

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

The square root of 51442092 is about 7172.3142708613. The cubic root of 51442092 is about 371.9114426730.

The spelling of 51442092 in words is "fifty-one million, four hundred forty-two thousand, ninety-two".