55142310 has 32 divisors (see below), whose sum is σ = 132852960. Its totient is φ = 14647808.

The previous prime is 55142309. The next prime is 55142317. The reversal of 55142310 is 1324155.

It is a super-2 number, since 2×55142310² = 6081348704272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4654 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (4151655).

Almost surely, 2^55142310 is an apocalyptic number.

55142310 is an abundant number, since it is smaller than the sum of its proper divisors (77710650).

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

55142310 is a wasteful number, since it uses less digits than its factorization.

55142310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55142310 is about 7425.7868269969. The cubic root of 55142310 is about 380.6229624757.

Adding to 55142310 its reverse (1324155), we get a palindrome (56466465).

The spelling of 55142310 in words is "fifty-five million, one hundred forty-two thousand, three hundred ten".