55020342 has 16 divisors (see below), whose sum is σ = 118505520. Its totient is φ = 16929312.

The previous prime is 55020311. The next prime is 55020373. The reversal of 55020342 is 24302055.

It is an interprime number because it is at equal distance from previous prime (55020311) and next prime (55020373).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352617 + ... + 352772.

It is an arithmetic number, because the mean of its divisors is an integer number (7406595).

Almost surely, 2^55020342 is an apocalyptic number.

55020342 is an abundant number, since it is smaller than the sum of its proper divisors (63485178).

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

55020342 is a wasteful number, since it uses less digits than its factorization.

55020342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705407.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 55020342 is about 7417.5698176694. The cubic root of 55020342 is about 380.3421249390.

Adding to 55020342 its reverse (24302055), we get a palindrome (79322397).

The spelling of 55020342 in words is "fifty-five million, twenty thousand, three hundred forty-two".