55142350 has 12 divisors (see below), whose sum is σ = 102564864. Its totient is φ = 22056920.

The previous prime is 55142341. The next prime is 55142357. The reversal of 55142350 is 5324155.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551374 + ... + 551473.

It is an arithmetic number, because the mean of its divisors is an integer number (8547072).

Almost surely, 2^55142350 is an apocalyptic number.

55142350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55142350 is a deficient number, since it is larger than the sum of its proper divisors (47422514).

55142350 is a wasteful number, since it uses less digits than its factorization.

55142350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102859 (or 1102854 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55142350 is about 7425.7895203136. The cubic root of 55142350 is about 380.6230545098.

The spelling of 55142350 in words is "fifty-five million, one hundred forty-two thousand, three hundred fifty".